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April 19, 2014

Search: A skier of mass 72 kg is pulled up a slope by a motor-driven cable

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physics
A skier of mass 75.0 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 60.0 m up a 35 slope (assumed to be frictionless) at a constant speed of 2.0 m/s?
Tuesday, October 19, 2010 at 4:21pm by ed

physics
A skier of mass 65.0 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 57.0 m up a 35 slope (assumed to be frictionless) at a constant speed of 2.0 m/s? J
Wednesday, January 5, 2011 at 10:28pm by Anonymous

Physics
A skier of mass 73.5 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 58 m up a 32 slope (assumed to be frictionless) at a constant speed of 2.0 m/s?
Monday, April 11, 2011 at 9:46pm by Elizabeth

Physics
A skier of mass 74.5 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 55 m up a 31 slope (assumed to be frictionless) at a constant speed of 2.0 m/s?
Sunday, October 14, 2012 at 12:36pm by Angela

ap physics
A skier of mass 70.5 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 60 m up a 38 slope (assumed to be frictionless) at a constant speed of 2.0 m/s?
Sunday, March 14, 2010 at 1:18am by shanster

Physics
A skier of mass 71.0 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 62.2 m up a 37.0 slope (assumed to be fric- tionless) at a constant speed of 2.0 m/s? The acceleration of gravity is 9.81 m/s2 .
Monday, January 9, 2012 at 8:49pm by Aly

physics
A skier of mass 72 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 65 m up a 30 slope (assumed frictionless) at a constant speed of 2.7 m/s? (b) What power must a motor have to perform this task?
Sunday, March 20, 2011 at 10:35pm by Allie

Physics
A 74 kg skier is pulled 50 meters up a 30 degree incline. How much work is required to pull the skier up?
Sunday, October 7, 2007 at 2:27pm by Marisa

Physics
A skier is pulled up a slope at a constant velocity by a tow bar. The slope is inclined at 24.0 with respect to the horizontal. The force applied to the skier by the tow bar is parallel to the slope. The skier's mass is 60.0 kg, and the coefficient of kinetic friction between...
Thursday, February 3, 2011 at 4:51pm by Lauren

physics
A skier is pulled up a slope at a constant velocity by a tow bar. The slope is inclined at 25.9 with respect to the horizontal. The force applied to the skier by the tow bar is parallel to the slope. The skier's mass is 55.3 kg, and the coefficient of kinetic friction between...
Saturday, January 28, 2012 at 9:12pm by rachel

physics
A skier is pulled up a slope at a constant velocity by a tow bar. The slope is inclined at 25.9 with respect to the horizontal. The force applied to the skier by the tow bar is parallel to the slope. The skier's mass is 55.3 kg, and the coefficient of kinetic friction between...
Monday, January 30, 2012 at 1:22pm by Amanda

physics
A skier is pulled up a slope at a constant velocity by a tow bar. The slope is inclined at 25.9 with respect to the horizontal. The force applied to the skier by the tow bar is parallel to the slope. The skier's mass is 55.3 kg, and the coefficient of kinetic friction between...
Monday, January 30, 2012 at 6:36pm by Marlee

physics
A skier is pulled up a slope at a constant velocity by a tow bar. The slope is inclined at 22.2 with respect to the horizontal. The force applied to the skier by the tow bar is parallel to the slope. The skier's mass is 56.0 kg, and the coefficient of kinetic friction between...
Friday, September 28, 2012 at 10:00pm by shyne

College Physics
A skier is pulled up a slope at a constant velocity by a tow bar. The slope is inclined at 28.2 with respect to the horizontal. The force applied to the skier by the tow bar is parallel to the slope. The skier's mass is 46.7 kg, and the coefficient of kinetic friction ...
Thursday, March 15, 2012 at 10:15pm by Angela

Physics
A skier is pulled up a slope at a constant velocity by a tow bar. The slope is inclined at 27.2 with respect to the horizontal. The force applied to the skier by the tow bar is parallel to the slope. The skier's mass is 53.7 kg, and the coefficient of kinetic friction ...
Monday, February 19, 2007 at 4:03pm by Susu

Physics
A 85-kg snow skier is being pulled up a 17 slope by a steel (Young's modulus 2.0 x 1011 N/m2) cable. The cable has a cross-section area of 7.4 x 10-5 m2. The cable applies a force to the skier, and, in doing so, the cable stretches by 2.6 x 10-4 m. A frictional force of ...
Wednesday, March 27, 2013 at 9:35pm by Anon

Physics
A 61-kg snow skier is being pulled up a 14 slope by a steel (Young's modulus 2.0 x 1011 N/m2) cable. The cable has a cross-section area of 7.0 x 10-5 m2. The cable applies a force to the skier, and, in doing so, the cable stretches by 2.1 x 10-4 m. A frictional force of ...
Saturday, November 23, 2013 at 11:19pm by Samantha

Physics
a 63-kg water skier is pulled up a 14.0 degree incline by a ropeparallel to the incline with a tension of 512 N. the coefficient ofkinetic friction is 0.27. What are the magnitude and direction ofthe skier's acceleration
Tuesday, September 28, 2010 at 10:56pm by Joyce

Physics
A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier accelerates. A 73.0-kg water-skier has an initial speed of 7.1 m/s. Later, the speed increases to 10.9 m/s. Determine the work done by the net external force ...
Monday, February 27, 2012 at 2:45pm by Candy

DrBob222 physics
A skier is pulled up a slope at a constant velocity by a tow bar. The slope is inclined at 27.2 with respect to the horizontal. The force applied to the skier by the tow bar is parallel to the slope. The skier's mass is 53.7 kg, and the coefficient of kinetic friction ...
Monday, February 19, 2007 at 3:47pm by Susu

Physics
A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier accelerates. A 63.6-kg water-skier has an initial speed of 5.3 m/s. Later, the speed increases to 10.8 m/s. Determine the work done by the net external force ...
Tuesday, November 8, 2011 at 7:20pm by Gabby

Physics. PLEASE HELP!!
A skier of mass 71 kg is pulled up a slope by a motor-driven cable. The acceleration of gravity is 9.8 m/s2. How much work is required to pull him 64.6 m up a 33.8 slope (assumed to be frictionless) at a constant speed of 2.53 m/s? Answer in units of kJ
Monday, March 26, 2012 at 1:23pm by Ashley

Physics(Please respond)
A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier accelerates. A 83.9-kg water-skier has an initial speed of 6.3 m/s. Later, the speed increases to 10.1 m/s. Determine the work done by the net external force ...
Sunday, June 3, 2012 at 11:50am by Hannah

Physics
A skier of mass 70 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 60m up a 30 degree slope (assumed frictionless) at a constant speed of 2.0 m/s? (b) What power must a motor have to perform this task?
Sunday, October 7, 2007 at 5:54pm by Kelly

ap physics
A skier of mass 61.0 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 40.0 m up a 30.0 slope (assumed frictionless) at a constant speed of 4.00 m/s? (b) What power must a motor have to perform this task?
Sunday, March 14, 2010 at 1:18am by Anonymous

Physics
skier of mass 79 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 80 m up a 30 slope (assumed frictionless) at a constant speed of 3.4 m/s? 1 J (b) What power (expressed in hp) must a motor have to perform this task?
Wednesday, February 26, 2014 at 1:13pm by Muriel

ap physics
skier of mass 79 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 80 m up a 30 slope (assumed frictionless) at a constant speed of 3.4 m/s? 1 J (b) What power (expressed in hp) must a motor have to perform this task?
Sunday, March 14, 2010 at 1:18am by Muriel

physics
A skier of mass 74 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 90 m up a 30 slope (assumed frictionless) at a constant speed of 3.0 m/s? J (b) What power (expressed in hp) must a motor have to perform this task? hp
Friday, October 12, 2012 at 12:09am by monic

Physics
A skier of mass 76 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 40 m up a 30 slope (assumed frictionless) at a constant speed of 2.5 m/s? J I know that the answer to the first problem is 14896Joules, but I do not know how to ...
Wednesday, March 10, 2010 at 7:36pm by Kelsey

physics
A skier is pulled by a tow rope up a frictionless ski slope that makes an angle of 12 degrees with the horizontal. The rope moves parallel to the slope with a constant speed of 1.0 m/s. The force of the rope does 880 J of work on the skier as the skier moves a distance of 7.0 ...
Tuesday, November 15, 2011 at 9:06pm by Anonymous

college physics
a water skier is being pulled by a tow rope attached to a boat. as the driver pushes the throttle forward,the skier accelerates. a 70.3kg water skier has an initial speed of 6.10m\s. determine the work done by the net external force acting on the skier.
Monday, May 6, 2013 at 11:21am by jaret

physics
A 64.2-kg skier coasts up a snow-covered hill that makes an angle of 23.8 with the horizontal. The initial speed of the skier is 7.18 m/s. After coasting 1.96 m up the slope, the skier has a speed of 3.13 m/s. Calculate the work done by the kinetic frictional force that acts ...
Saturday, November 26, 2011 at 6:49pm by dave

Physics
A 61.8 kg skier coasts up a snow-covered hill that makes an angle of 26.0 with the horizontal. The initial speed of the skier is 6.10 m/s. After coasting a distance of 1.86 m up the slope, the speed of the skier is 4.48 m/s. Calculate the work done by the kinetic frictional ...
Thursday, April 29, 2010 at 11:34pm by Fallon

Physics 1
A 64.9 kg skier coasts up a snow-covered hill that makes an angle of 25.4 with the horizontal. The initial speed of the skier is 8.67 m/s. After coasting a distance of 1.92 m up the slope, the speed of the skier is 4.33 m/s. Calculate the work done by the kinetic frictional ...
Wednesday, May 5, 2010 at 5:54pm by Fallon

physics
A 64.9 kg skier coasts up a snow-covered hill that makes an angle of 25.4 with the horizontal. The initial speed of the skier is 8.67 m/s. After coasting a distance of 1.92 m up the slope, the speed of the skier is 4.33 m/s. Calculate the work done by the kinetic frictional ...
Sunday, May 9, 2010 at 6:44pm by Fallon

physics
A 64.9 kg skier coasts up a snow-covered hill that makes an angle of 25.4 with the horizontal. The initial speed of the skier is 8.67 m/s. After coasting a distance of 1.92 m up the slope, the speed of the skier is 4.33 m/s. Calculate the work done by the kinetic frictional ...
Tuesday, May 11, 2010 at 3:25pm by Fallon

Physics
A 80 kg skier grips a moving rope that is powered by an engine and is pulled at constant speed to the top of a 25 degree hill. The skier is pulled a distance x = 230m along the incline and it takes 2.3 min to reach the top of the hill. If the coefficient of kinetic friction ...
Monday, June 18, 2012 at 7:08pm by Kensey

physics
A water-skier is being pulled at a steady speed in a straight line. her mass plus the mass of the ski is 65 kg. the pull of the tow rope on her is 520 N. a...i) What is the vertical component Y of the push of the water on the ski?? ....ii) What is the horizontal component X of...
Monday, September 3, 2012 at 2:21pm by Mariam

college physics
A water-skier is being pulled at a steady speed in a straight line. her mass plus the mass of the ski is 65 kg. the pull of the tow rope on her is 520 N. a...i) What is the vertical component Y of the push of the water on the ski?? ....ii) What is the horizontal component X of...
Monday, September 3, 2012 at 2:25pm by Mariam

physics
A 65.0-kg skier coasts up a snow-covered hill that makes an angle of 27.4 with the horizontal. The initial speed of the skier is 6.37 m/s. After coasting 2.07 m up the slope, the skier has a speed of 4.06 m/s. Calculate the work done by the kinetic frictional force that acts ...
Monday, November 28, 2011 at 12:50am by Yuli

Physics
You will have to describe figure P4.26 Is the 10 kg mass hanging straight down? Is the 3.50 kg mas being pulled up an incline as the 10 kg mass falls?
Monday, June 9, 2008 at 2:11pm by Damon

Physics
A 69-kg skier moving horizontally at 4.1 m/s encounters a 21 incline. (a) How far up the incline will the skier move before she momentarily stops, ignoring friction? (b) How far up the incline will the skier move if the coefficient of kinetic friction between the skies and ...
Friday, June 1, 2012 at 10:23pm by John

Physics
A 64.5-kg skier moving horizontally at 4.83 m/s encounters a 16.7 incline. a) How far up the incline will the skier move before she momentarily stops, ignoring friction? b) How far up the incline will the skier move if the coefficient of kinetic friction between the skies and...
Sunday, February 20, 2011 at 2:25pm by Em

physics
A skier is coasting on perfectt smooth snow at 7.0 m/s and crosses a rough patch of snow 35m long. If the frictional force exerted on the skier is 6.0 N, what is her speed as she leaves the patch of snow? Assume the skier and her skis habe a mass of 90.0 kg.
Monday, December 6, 2010 at 5:16pm by Nia

science
A 71.9-kg skier coasts up a snow-covered hill that makes an angle of 27.5 with the horizontal. The initial speed of the skier is 9.67 m/s. After coasting a distance of 1.50 m up the slope, the speed of the skier is 4.52 m/s. (a) Find the work done by the kinetic frictional ...
Monday, February 28, 2011 at 1:35pm by shaknocka

Physics
A 68-kg water skier is being pulled by a nylon (Young's modulus 3.7 x 109 N/m2) tow rope that is attached to a boat. The unstretched length of the rope is 15 m and its cross-section area is 1.8 x 10-5 m2. As the skier moves, a resistive force (due to the water) of magnitude ...
Saturday, November 23, 2013 at 10:47pm by Samantha

physic
A water skier has a mass of 73 kg. Find the magnitude of the net force acting on the skier when she lets go of the tow rope and glides to a halt in 20 s.
Saturday, December 4, 2010 at 1:27am by hy

physics
A mass m = 17.0 kg is pulled along a horizontal floor with NO friction for a distance d =5.1 m. Then the mass is pulled up an incline that makes an angle = 30.0 with the horizontal and has a coefficient of kinetic friction k = 0.34. The entire time the massless rope used ...
Thursday, October 18, 2012 at 4:31pm by mohamed

Physics 1
A skier of mass 109 kg travels down a frictionless ski trail. a)If the top of the trail is a height 218 m above the bottom, what is the work done by gravity on the skier? _____J b)Find the velocity of the skier when he reaches the bottom of the ski trail. Assume he starts from...
Monday, October 8, 2012 at 9:13pm by John

physics
A 69.4-kg skier coasts up a snow-covered hill that makes an angle of 24.3 with the horizontal. The initial speed of the skier is 7.04 m/s. After coasting 1.78 m up the slope, the skier has a speed of 3.04 m/s. Calculate the work done by the kinetic frictional force that acts ...
Wednesday, November 30, 2011 at 8:26pm by Kim

Repost-Physics 1
A skier of mass 109 kg travels down a frictionless ski trail. a)If the top of the trail is a height 218 m above the bottom, what is the work done by gravity on the skier? _____J b)Find the velocity of the skier when he reaches the bottom of the ski trail. Assume he starts from...
Tuesday, October 9, 2012 at 9:18pm by John

physics
A 60 kg skier with an initial speed of 12 m/s coasts up a 2.5 m high rise that makes a 35 degree angle with the horizontal. If the coefficient of friction between the skis and the snow is .08, find the speed of the skier when he reaches the top of the rise. How much work does ...
Saturday, October 9, 2010 at 6:30pm by Me

PHYSICS: Conservative Forces and Potential Energy
A mass m = 18 kg is pulled along a horizontal floor with NO friction for a distance d =6.6 m. Then the mass is pulled up an incline that makes an angle θ = 38 with the horizontal and has a coefficient of kinetic friction μk = 0.44. The entire time the massless rope ...
Wednesday, November 2, 2011 at 7:47pm by Mary

physics
A ski trail makes a vertical descent of 77 m. A novice skier, unable to control his speed, skis down this trail and is lucky enough not to hit any trees. If the skier is moving at 17 m/s at the bottom of the trail, calculate the total work done by friction and air resistance ...
Tuesday, February 28, 2012 at 8:10pm by Angel

physics
A ski trail makes a vertical descent of 77 m. A novice skier, unable to control his speed, skis down this trail and is lucky enough not to hit any trees. If the skier is moving at 17 m/s at the bottom of the trail, calculate the total work done by friction and air resistance ...
Wednesday, February 29, 2012 at 2:43pm by Angel

physics
The water skier there has a mass of 71.0 kg. Find the magnitude of the net force acting on the skier when (a) she is accelerated from rest to a speed of 14.0 m/s in 9.00 s and (b) she lets go of the tow rope and glides to a halt in 16.0 s.
Saturday, June 9, 2012 at 7:41pm by Anonymous

Physics
A skier of mass 83.3 kg comes down a slope of constant angle 28 with the horizontal. The acceleration of gravity is 9.8 m/s2 . What is the force on the skier parallel to the slope? Answer in units of N
Thursday, February 3, 2011 at 4:51pm by Mekia

physics
A skier of mass 40.6 kg comes down a slope of constant angle 30◦ with the horizontal. What is the force on the skier parallel to the slope? Neglect friction. The acceleration of gravity is 9.8 m/s 2
Wednesday, October 16, 2013 at 11:15pm by ZAIMAH

science
A 50 kg skier is pulled up a frictionless ski slope that makes an angle of 8 degrees with the horizontal by holding onto a tow rope that moves parallel to the slope. Determine the magnitude of the force of the rope on the skier at an instant when a) the rope is moving with a ...
Sunday, November 12, 2006 at 10:40am by Ren

physics
A skier of mass 54.6 kg comes down a slope of constant angle 21◦ with the horizontal. The acceleration of gravity is 9.8 m/s2 . What is the force on the skier parallel to the slope? Answer in units of N
Tuesday, January 10, 2012 at 11:30pm by Connor

physics
A skier of mass 54.6 kg comes down a slope of constant angle 21◦ with the horizontal. The acceleration of gravity is 9.8 m/s2 . What is the force on the skier parallel to the slope? Answer in units of N
Tuesday, January 10, 2012 at 11:30pm by Connor

physics
A skier of mass 54.6 kg comes down a slope of constant angle 21◦ with the horizontal. The acceleration of gravity is 9.8 m/s2 . What is the force on the skier parallel to the slope? Answer in units of N
Tuesday, January 10, 2012 at 11:30pm by Connor

physics
In downhill speed skiing a skier is retarded by both the air drag force on the body and the kinetic frictional force on the skis. Suppose the slope angle is = 37.5, the snow is dry snow with a coefficient of kinetic friction k = 0.0400, the mass of the skier and equipment ...
Saturday, December 13, 2008 at 1:15pm by johnny

Physics help needed !
In downhill speed skiing a skier is retarded by both the air drag force on the body and the kinetic frictional force on the skis. Suppose the slope angle is θ = 39.5, the snow is dry snow with a coefficient of kinetic friction μk = 0.0400, the mass of the skier and ...
Friday, October 26, 2012 at 3:11am by agentx

Physics please
In downhill speed skiing a skier is retarded by both the air drag force on the body and the kinetic frictional force on the skis. Suppose the slope angle is θ = 39.5, the snow is dry snow with a coefficient of kinetic friction μk = 0.0400, the mass of the skier and ...
Friday, October 26, 2012 at 9:51am by Hailey56

Physics
In the first part of the problem a 4 kg mass moving at 6 m/s hits another 4 kg mass that means 4 kg * 6 m/s + 4 kg* 0 m/s = initial momentum the final momentum is 4 kg * v1 + 4 kg*v2 so 24 + 0 = 4v1 + 4 v2 or v1 = 6 - v2 then energy initial ke = (1/2) m v^2 = 2*36 = 72 Joules ...
Thursday, January 17, 2008 at 10:07pm by Damon

physics
A 48 kg skier skis directly down a frictionless slope angled at 5 to the horizontal. Assume the skier moves in the negative direction of an x axis along the slope. A wind force with component Fx acts on the skier. (a) What is Fx if the magnitude of the skier's velocity is ...
Wednesday, September 22, 2010 at 11:58am by John

Physics
How would I go about calculating the acceleration of a mass being pulled up an inclined plane at an angle. Given - mass, and presumably angles So the object is being pulled up an angle at another angle.
Sunday, December 6, 2009 at 3:11pm by Cait

physics
A skier with a mass of 70 kg starts from rest and skis down an icy (frictionless) slope that has a length of 52 m at an angle of 32 with respect to the horizontal. At the bottom of the slope, the path levels out and becomes horizontal, the snow becomes less icy, and the skier...
Wednesday, March 3, 2010 at 7:58pm by Larry

physics
(a) What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 11.3 m/s when going down a slope for 3.72 s? (b) How far does the skier travel in this time?
Sunday, June 16, 2013 at 10:56pm by louis aaaaa

Physics
A skier of mass 79.1 kg, starting from rest, slides down a slope at an angle q of 38 with the horizontal. The coefficient of kinetic friction, m, is 0.09. What is the net work (the net gain in kinetic energy) done on the skier in the first 8.9 s of descent?
Friday, October 19, 2012 at 12:36pm by Brianna

college level physics
a 40 kg skier skis down a frictionless slope angled at 10 degrees to the horizontal. Assume the skier moves in the negative direction of an x axis along the slope. A wind force with component Fx acts on the skier. What is Fx is the magnitude of the skier's velocity is (a) ...
Sunday, October 19, 2008 at 12:33am by jane

Physics
A block of mass m = 5.2 kg is pulled up a = 24 incline as in the figure with a force of magnitude F = 34 N.
Wednesday, November 16, 2011 at 9:12pm by Josh

physics
A skier of mass 77.7 kg, starting from rest, slides down a slope at an angle $\theta$ of 35.7 with the horizontal. The coefficient of kinetic friction is 0.08. What is the net work, i.e. net gain in kinetic energy, (in J) done on the skier in the first 10.9 s of descent?
Friday, November 22, 2013 at 1:59pm by JAYZ

Physics
A skier with a mass of 56 kg starts from rest and skis down an icy (frictionless) slope that has a length of 70 m at an angle of 32 with respect to the horizontal. At the bottom of the slope, the path levels out and becomes horizontal, the snow becomes less icy, and the skier...
Thursday, February 16, 2012 at 5:02pm by Michelle

Physics
A skier of mass 66 kg skis straight down a 11 slope at constant velocity. Draw a free-body diagram of the skier with the various external forces acting on her. Include the force of air resistance, which is directed opposite the velocity. (Do this on paper. Your instructor ...
Saturday, March 16, 2013 at 7:15pm by Help

physics
A 69 kg skier encounters a dip in the snow's surface that has a circular cross section with a radius of curvature of 12 m. If the skier's speed at point A as shown below is 8.4 m/s, what is the normal force exerted by the snow on the skier at point B? Ignore frictional forces.
Monday, March 26, 2012 at 1:13am by andy

physics
A 65 kg skier speeds down a trail, as shown in Figure 5-24. The surface is smooth and inclined at an angle of θ = 20 with the horizontal. (a) Draw a free-body diagram for the skier. (Do this on paper. Your instructor may ask you to turn in this diagram.) (b) Determine ...
Wednesday, January 13, 2010 at 2:51pm by amy

Physic
A 61-kg skier, coasting down a hill that is an angle of 23 to the horizontal, experiences a force of kinetic friction of magnitude 72N. The skier's speed is 3.5m/s near the top of the slope. Determine the speed after the skier has travelled 62m downhill. Air resistance is ...
Wednesday, August 14, 2013 at 6:38pm by Tristan

physics
A 150 lb (68 kg) skier impacts a person who is standing at the bottom of the ski hill. If our skier began the descent at a height of 40 meters, how fast was our skier moving to the bottom of the hill?
Thursday, April 25, 2013 at 1:53am by Anonymous

physics
A 75.5 kg skier encounters a dip in the snow's surface that has a circular cross section with radius of curvature of $r$ = 10.1 m. If the skier's speed at point A in the figure below is 7.82 m/s, what is the normal force exerted by the snow on the skier at point B? h = 1.79 m...
Saturday, March 8, 2014 at 8:14pm by Casa

Physics
A constant friction force of 10 N acts on a 85 kg skier for 20 s. What is the skier's change in velocity?
Wednesday, January 12, 2011 at 10:43pm by Eleanor

physics
A constant friction force of 15 N acts on a 70 kg skier for 20 s. What is the skier's change in velocity?
Monday, December 19, 2011 at 3:16pm by Amelia

physics
The water skier in the figure is at an angle of 35degree with respect to the center line of the boat, and is being pulled at a constant speed of 15m/s . 1)If the tension in the tow rope is 90.0 , how much work does the rope do on the skier in 30.0 ? 2)How much work does the ...
Saturday, November 20, 2010 at 4:23pm by JC

physics
A 35-kg skier skis directly down a frictionless slope angled at 11 to the horizontal. Assume the skier moves in the negative direction of an x axis along the slope. A wind force with component Fx acts on the skier. What is Fx (in N) if the magnitude of the skier's velocity is...
Thursday, February 8, 2007 at 5:14pm by **chocolatekisses

science
V = 72.8L * 1000cm^3/L = 72,800 cm^3. Mass=72800cm^3 * 0.001kg/cm^3=72.8 kg.
Thursday, February 2, 2012 at 12:31am by Henry

Physics
Two pendulums are set up side by side. One pendulum P, consists of a 0.240 kg mass that is suspended on a string that is 65.0 cm long. The other pendulum, Q, has a 0.360 kg mass that is suspended on a string that is 39.0 cm long. The two masses are pulled aside slightly and ...
Thursday, January 31, 2013 at 7:13pm by Steve

physics
A mass m = 14.0 kg is pulled along a horizontal floor with NO friction for a distance d =8.7 m. Then the mass is pulled up an incline that makes an angle θ = 27.0 with the horizontal and has a coefficient of kinetic friction μk = 0.41. The entire time the massless ...
Monday, October 1, 2012 at 6:32pm by need of help

Physics
A skier with a mass of 66.6 kg starts from rest and skis down an icy (frictionless) slope that has a length of 58.4 m at an angle of 29.8 with respect to the horizontal. At the bottom of the slope, the path levels out and becomes horizontal, the snow becomes less icy, and the...
Thursday, September 27, 2012 at 9:19pm by Rebecca

Science
A skier of mass 75 kg accelerates from rest down the slope as shown in the diagram (It's a triangle with a height of 300 m, length of 400 m, and the hypotenuse is 500 m; The skier is on the hypotenuse. At the bottom of the slope, he is travelling at 40 m/s. What is the average...
Monday, December 17, 2012 at 5:53am by John

physics
The water skier in the figure is at an angle of 35degree with respect to the center line of the boat, and is being pulled at a constant speed of 15m/s . 1)If the tension in the tow rope is 90.0N, how much work does the rope do on the skier in 30.0s ? 2)How much work does the ...
Saturday, November 20, 2010 at 4:23pm by JC

Physics
A ski slope drops at an angle of 24 degrees with respect to the horizontal and is 500 m long. A 60 kg skier skis down from the top to the bottom of the slope. A.) Determine the change in gravitational potential energy of the skier+earth system. b.) If 20% of the gravitation ...
Monday, November 12, 2012 at 8:11pm by Iza

Chemistry
M = moles/L soln moles KNO3 = grams KNO3/molar mass = 72.5/101.1/2L soln = 0.359 to confirm the 0.359 stated in the problem. m = mols/kg solven 0.7171/kg solvent. We must calculate the kg solvent. 0.354 = 0.7171/kg solvent and kg solvent = 0.7171/0.354 = about 2.026 kg. (...
Sunday, February 19, 2012 at 9:39am by DrBob222

college physics helpasap
The water skier in the figure is at an angle of 35degree with respect to the center line of the boat, and is being pulled at a constant speed of 15m/s . 1)If the tension in the tow rope is 90.0N, how much work does the rope do on the skier in 30.0s ? 2)How much work does the ...
Saturday, November 20, 2010 at 4:31pm by JU

Physics
A 5 kg block is being pulled to the right by a rope which is attached to a dangling 2 kg mass. The coefficient of kinetic friction between the mass & table is 0.1 What is the tension in the rope?
Monday, February 21, 2011 at 3:48pm by Paige

Physics
A 60 kg skier moving at 14 m/s strikes a snow bank and comes to a stop in 4 seconds. What is the average impact force on the skier?
Tuesday, November 15, 2011 at 8:19pm by Shari

Physics
A skier of mass 59.5 kg comes down a slope of constant angle 1◦ with the horizontal. The acceleration of gravity is 9.8 m/s^2 i. What is the force on the skier parallel to the slope? Answer in units of N. ii. What force normal to the slope is exerted by the skis? Answer ...
Friday, February 21, 2014 at 8:26pm by mallak

physics
Physics force of friction question a 63kg water skier is pulled across a lake by a rope that exerts a force of 3.2x10^2 and makes an angle 17 degrees above the horizontal. if the coefficient between the skies and the lake is 0.27 at what rate will the skier accelerate?
Sunday, March 28, 2010 at 11:14pm by jake

physics
A skier of mass 70kg is pulled up a slope by a motor-driven cable. The acceleration of gravity is 9.8m/s^2. How much work is required to pull him 60m up a 30.7 slope (frictionless) at a constant speed of 3 m/s? answer in units of kJ. In this question, I think I gotta use mgh ...
Sunday, September 17, 2006 at 5:46pm by puff puff

physics
Tom has a mass of 72.2 kg and Sally has a mass of 49.4 kg. Tom and Sally are standing 17.4 m apart on a massless dance floor. Sally looks up and she sees Tom. She feels an attraction. If the attraction is gravitation, find its magnitude. Assume both can be replaced...
Thursday, December 13, 2012 at 9:30pm by Anonymous

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