Thursday

May 26, 2016
Number of results: 36,553

**physics**

A 69 kg person on skis is going down a hill sloped at 36° below the horizontal (+x direction). The coefficient of friction between the skis and the snow is 0.15. Find the x and y components of the weight of the skier going downhill.
*December 11, 2011 by mark*

**Physics **

A 59-kg person on skis is going down a hill sloped at 30° from the horizontal. The coefficient of friction between the skis and the snow is 0.10. What would be the magnitude of the acceleration?
*November 5, 2013 by matt*

**science**

A 75-kg person on skis is going down a hill sloped at 30.0°. The coefficient of kinetic friction between the skis and the snow is 0.15. How fast is the skier going 10.0 s after starting from rest?
*December 5, 2010 by Bob*

**physics**

A 75g person on skis is going down a hill sloped at an angle 30.the coefficient of kinetic friction between the skis and the snow is 0.15.how fast is the skier going 10s after starting from rest?
*November 6, 2011 by Anonymous*

**Pls help me now**

A 75g person on skis is going down a hill sloped at an angle 30.the coefficient of kinetic friction between the skis and the snow is 0.15.how fast is the skier going 10s after starting from rest?(answer=36m/s)
*November 6, 2011 by Henneh *

**Physics**

A 61-kg person on skis is going down a hill sloped at 30¡Æ from the horizontal. The coefficient of friction between the skis and the snow is 0.16. What would be the magnitude of the acceleration? An crate weighing 576 N is resting on a plane inclined 29¡Æ above the horizontal...
*October 16, 2009 by Angie*

**Physics**

A 59-kg person on skis starts from rest down a hill sloped at 36° from the horizontal. The coefficient of friction between the skis and the snow is 0.16. After the skier had been moving for 5.0 s, the friction of the snow suddenly increased and made the net force on the skier ...
*December 15, 2012 by Alex*

**physics**

A man with a mass of 62 kg skis down a frictionless hill that is h = 3.3 m high. At the bottom of the hill the terrain levels out. As the man reaches the horizontal section, he grabs a 20-kg backpack and skis off a 2.0-m-high ledge. At what horizontal distance from the edge of...
*March 1, 2012 by trisha*

**physics**

A man with a mass of 62 kg skis down a frictionless hill that is h = 3.3 m high. At the bottom of the hill the terrain levels out. As the man reaches the horizontal section, he grabs a 20-kg backpack and skis off a 2.0-m-high ledge. At what horizontal distance from the edge of...
*March 1, 2012 by trisha*

**Physics**

A man with a mass of 60 kg skis down a frictionless hill that is h = 2.2 m high. At the bottom of the hill the terrain levels out. As the man reaches the horizontal section, he grabs a 20-kg backpack and skis off a 2.0-m-high ledge. At what horizontal distance from the edge of...
*March 4, 2012 by Ray*

**Physics**

A 1600-kg car experiences a combined force of air resistance and friction that has the same magnitude whether the car goes up or down a hill at 32 m/s. Going up a hill, the car's engine produces 54 hp more power to sustain the constant velocity than it does going down the same...
*October 15, 2012 by Sam*

**Physics**

A 1800-kg car experiences a combined force of air resistance and friction that has the same magnitude whether the car goes up or down a hill at 28 m/s. Going up a hill, the car's engine produces 52 hp more power to sustain the constant velocity than it does going down the same...
*October 15, 2012 by Darren*

**Physics help**

A skier approaches the base of an icy hill with a speed of 11.6 m/s. The hill slopes upward at 24° above the horizontal. Ignoring all friction forces, find the acceleration of this skier (a) when she is going up the hill, (b) when she has reached her highest point, and (c) ...
*February 4, 2012 by Ann*

**physics**

A 62.0 skier is moving at 6.10 on a frictionless, horizontal snow-covered plateau when she encounters a rough patch 3.30 long. The coefficient of kinetic friction between this patch and her skis is 0.330. After crossing the rough patch and returning to friction-free snow, she ...
*March 28, 2013 by mira*

**physics**

A toboggan approaches a snowy hill moving at 15.0 m/s. The coefficients of static and kinetic friction between the snow and the toboggan are 0.460 and 0.350, respectively, and the hill slopes upward at 41.0 above the horizontal. Find the acceleration of the toboggan as it is ...
*February 8, 2013 by Alex*

**Physics help! **

An extreme skier, starting from rest, coasts down a mountain that makes an angle of 26.7 ° with the horizontal. The coefficient of kinetic friction between her skis and the snow is 0.248. She coasts for a distance of 10.5 m before coming to the edge of a cliff. Without slowing...
*February 24, 2011 by Tiffany*

**physics**

A man skis down from the top of a hill 1500.0 m high, starting from rest. If he loses 50% of his initial mechanical energy to friction during his descent, what is his speed in m/s at the base of the hill?
*November 5, 2014 by fun*

**physics**

an extreme skier starting from rest, coasts down a mountain that makes an angle 25.0¨¬with the horizontal. The coeffiecient of kinetic friction between her skis and the snow is 0.200. She coasts for a distance of 8.4m before coming to the edge of a cliff. Without slowing down...
*October 31, 2009 by sharon*

**physics**

An extreme skier, starting from rest, coasts down a mountain slope that makes an angle 25.0° with the horizontal. The coefficient of kinetic friction between her skis and the snow is 0.200. She coasts for a distance of 13.8 m before coming to the edge of a cliff. Without ...
*July 29, 2011 by Kelly*

**Physics**

A toboggan approaches a snowy hill moving at 11.1 m/s . The coefficients of static and kinetic friction between the snow and the toboggan are 0.410 and 0.280, respectively, and the hill slopes upward at 42.0 ∘ above the horizontal. A)Find the acceleration of the toboggan...
*February 14, 2016 by Samantha*

**Physics**

The force exerted by the floor of an elevator on the foot of a person standing on it is more than the weight of the person if the elevator is 1.going up and slowing down 2.going up with constant speed 3.going down and speeding up 4.going down and slowing down
*November 2, 2012 by Ajai*

**Math**

A 100 foot tall antenna sits part way up a hill. The hill makes an angle to 12 degrees with the horizontal.In other words, if you were going to walk up the hill, you would walk at an angle of 12 degrees. To keep the antenna stable,it must be anchored by 2 cables.The distance ...
*April 18, 2016 by Anonymous needs help asap*

**Pre calculus**

A 100 foot tall antenna sits part way up a hill. The hill makes an angle to 12 degrees with the horizontal. In other words, if you were going to walk up the hill, you would walk at an angle of 12 degrees. To keep the antenna stable, it must be anchored by 2 cables.The distance...
*April 12, 2016 by Bimo*

**Pre calculus**

A 100 foot tall antenna sits part way up a hill. The hill makes an angle to 12 degrees with the horizontal. In other words, if you were going to walk up the hill, you would walk at an angle of 12 degrees. To keep the antenna stable, it must be anchored by 2 cables.The distance...
*April 13, 2016 by Bimo*

**PHYICAL**

Awoman of 75kg skis down a 50m high hill , the frictional force is not negligible her speed at the bottom of the hill is only 25m\sec, What is the work done by the frictional forces
*July 8, 2012 by bbbb*

**PHYICAL**

Awoman of 75kg skis down a 50m high hill , the frictional force is not negligible her speed at the bottom of the hill is only 25m\sec, What is the work done by the frictional forces.
*July 8, 2012 by bbbb*

**PHYICAL**

Awoman of 75kg skis down a 50m high hill , the frictional force is not negligible her speed at the bottom of the hill is only 25m\sec, What is the work done by the frictional forces.
*July 8, 2012 by alex*

**PHYICAL**

Awoman of 75kg skis down a 50m high hill , the frictional force is not negligible her speed at the bottom of the hill is only 25m\sec, What is the work done by the frictional forces
*July 8, 2012 by ale *

**PHYICAL**

Awoman of 75kg skis down a 50m high hill , the frictional force is not negligible her speed at the bottom of the hill is only 25m\sec, What is the work done by the frictional forces.
*July 8, 2012 by a b*

**math**

A 100 foot tall antenna sits part way up a hill. The hill makes an angle to 12 degrees with the horizontal. In other words, if you were going to walk up the hill, you would walk at an angle of 12 degrees. To keep the antenna stable, it must be anchored by 2 cables.The distance...
*April 13, 2016 by Please help Precalc*

**Precalculus**

A 100 foot tall antenna sits part way up a hill. The hill makes an angle to 12 degrees with the horizontal. In other words, if you were going to walk up the hill, you would walk at an angle of 12 degrees. To keep the antenna stable, it must be anchored by 2 cables.The distance...
*April 13, 2016 by Ram*

**Pre calculus**

A 100 foot tall antenna sits part way up a hill. The hill makes an angle to 12 degrees with the horizontal. In other words, if you were going to walk up the hill, you would walk at an angle of 12 degrees. To keep the antenna stable, it must be anchored by 2 cables.The distance...
*April 18, 2016 by Ram*

**math(pre calc)**

A 100 foot tall antenna sits part way up a hill. The hill makes an angle to 12 degrees with the horizontal. In other words, if you were going to walk up the hill, you would walk at an angle of 12 degrees. To keep the antenna stable, it must be anchored by 2 cables.The distance...
*April 18, 2016 by Need this asap please#2*

**trigonometry**

a tower 150 meter is situated at the top of the hill.At a point 650 m down the hill.The angle between the surface of the hill and the line of sight to the of the tower is 12degrees 30 '.Find the inclination of the hill to a horizontal plane.
*February 12, 2015 by lee12*

**algebra**

a man rides up a ski lift at the rate of 5 miles per hour and skis back down the hill at the rate of 50miles an hour. if the complete trip requires 22 minutes, how far is it from the bottom to top of the hill?
*August 30, 2011 by wilma *

**physics**

The cart starts from rest at the top of a hill with height, H1. It rolls down the hill and at the bottom of the hill it has a speed of 8 m/s. Next it is at the top of same hill but pushed so that it starts at the top of the hill with a speed of 6 m/s. How fast is it going at ...
*October 11, 2011 by zacurea*

**physics**

The cart starts from rest at the top of a hill with height, H2. It rolls down the hill and at the bottom of the hill it has a speed of 10 m/s. Next it is at the top of same hill but pushed so that it starts at the top of the hill with a speed of 4.59 m/s. How fast is it going ...
*October 11, 2011 by zacurea*

**precalculus**

Berry is standing at the edge of a hill that slopes downward and to the right. He notices that for every 5 feet you go in a horizontal direction, the hill drops by 2 feet. Berry places a ball at the edge of the hill (the origin of the coordinate system), and kicks the ball at ...
*June 10, 2013 by Anonymous*

**10th grade**

Suppose that a kid was casually sledding down a gentle slopping hill going 6 feet per second. Then, he hit a steeper part of the hill and started accelerating at a rate of 1.2 feet/second squared. At the bottom of the steep part of the hill he was going 10.56 feet/second. How ...
*December 9, 2010 by Anna*

**physics**

Trevor skis down a hill at a speed of 25 m/s. Friction slows him down to a speed of 20 m/s. Which free-body diagram shows the forces acting on him
*April 15, 2016 by diana ramirez*

**COLLEGE PHYSICS**

A 62.0 kg skier is moving at 6.50 m/s on a frictionless, horizontal snow covered plateau when she encounters a rough patch 3.50 m long. The coefficient of kinetic friction between this patch and returning to friction-free snow, she skis down an icy, frictionless hill 2.50 m ...
*June 9, 2010 by Anonymous*

**Physics**

A Martian rover is moving up a hill sloped at 30.0° with the horizontal. If it has a constant velocity of 1.50 meters/second, calculate its vertical displacement after 21.0 seconds.
*February 22, 2012 by Lauren01*

**physics**

A Martian rover is moving up a hill sloped at 30.0° with the horizontal. If it has a constant velocity of 1.50 meters/second, calculate its vertical displacement after 21.0 seconds.
*April 27, 2013 by dddddd*

**physics**

A Martian rover is moving up a hill sloped at 30.0° with the horizontal. If it has a constant velocity of 1.50 meters/second, calculate its vertical displacement after 21.0 seconds
*May 21, 2013 by Anonymous*

**physics**

a person is standing at the top of a 58 m tall hill. He stumbles and falls. As he rolls down the hill, magically friction has no effect on him! when he is still 25.0 m above the base of the hill determine how fast he is moving.
*December 7, 2012 by Ann*

**Physics**

A person is standing at the top of a 58.0m tall hill. He stumbles and falls.As he rolls down the hill, magically friction has no effect on him! When he is still 25.0m above the base of the hill determine how fast he is moving.
*December 15, 2013 by Ted*

**physics**

A skier starts from rest at the top of a hill that is inclined at 10.3° with the horizontal. The hillside is 210 m long, and the coefficient of friction between snow and skis is 0.0750. At the bottom of the hill, the snow is level and the coefficient of friction is unchanged. ...
*October 16, 2011 by Anonymous*

**Physics**

A skier starts from rest at the top of a hill that is inclined at 9.8° with the horizontal. The hillside is 170 m long, and the coefficient of friction between snow and skis is 0.0750. At the bottom of the hill, the snow is level and the coefficient of friction is unchanged. ...
*July 5, 2012 by Lauren*

**physics**

A skier going down a hill accelerates from 5.15m/s to17.3m/s over a period of 11.7 seconds. For all calculations, you may neglect drag. If the skier’s total mass is 57.3kg, what is the average force applied by the snow against the skis to bring her to a stop? would it be: f=(...
*November 12, 2014 by sarah*

**physics...again :/**

A skier starts from rest at the top of a hill that is inclined at 9.9° with the horizontal. The hillside is 160 m long, and the coefficient of friction between snow and skis is 0.0750. At the bottom of the hill, the snow is level and the coefficient of friction is unchanged. ...
*November 10, 2010 by clueless*

**physics**

A skier starts from rest at the top of a hill that is inclined at 11.0° with respect to the horizontal. The hillside is 190 m long, and the coefficient of friction between snow and skis is 0.0750. At the bottom of the hill, the snow is level and the coefficient of friction is ...
*October 11, 2011 by Anonymous*

**physics**

A skier starts from rest at the top of a hill that is inclined at 9.5° with respect to the horizontal. The hillside is 225 m long, and the coefficient of friction between snow and skis is 0.0750. At the bottom of the hill, the snow is level and the coefficient of friction is ...
*October 12, 2012 by monic*

**physics**

A skier starts from rest at the top of a hill that is inclined at 9.5° with respect to the horizontal. The hillside is 225 m long, and the coefficient of friction between snow and skis is 0.0750. At the bottom of the hill, the snow is level and the coefficient of friction is ...
*October 12, 2012 by monic*

**physics**

A skier starts from rest at the top of a hill that is inclined 18.5° with respect to the horizontal. The hillside is 200 m long, and the coefficient of friction between snow and skis is μk = 0.0500. At the bottom of the hill, the snow is level and the coefficient of ...
*October 25, 2010 by Anonymous*

**Physics**

A skier starts from rest at the top of a hill that is inclined at 12.0° with the horizontal. The hillside is 180.0 m long, and the coefficient of friction between the snow and the skis is 0.0750. At the bottom of the hill, the snow is level and the coefficient of friction is ...
*March 18, 2012 by smh*

**physics **

a skier decides to ski down a hill inclined at 12 degrees to the horizontal. He pushes on his poles and starts to slide down the slope. If his initial speed after he stops pushing is 4.7 m/s and us= 0.28, how far will mr.grewal slide down the hill before coming to rest
*April 6, 2015 by Tom*

**phys. help**

A 30-kg child coast down a hill on a 20-kg sled. She pushes off from the top of the hill with a velocity of 1 m/s. At the bottom of the hill, she is moving 4 m/s. If there is no heat generated when she slides down, how high is this hill? thank u
*March 5, 2008 by Aulivia*

**physics**

A toboggan slides down a hill and has a constant velocity. The angle of the hill is 6.50° with respect to the horizontal. What is the coefficient of kinetic friction between the surface of the hill and the toboggan?
*June 30, 2013 by francis*

**physics**

A toboggan slides down a hill and has a constant velocity. The angle of the hill is 6.70° with respect to the horizontal. What is the coefficient of kinetic friction between the surface of the hill and the toboggan?
*September 23, 2014 by chidera*

**physics**

A child rides a toboggan down a hill that descends at an angle of 20.7◦ to the horizontal. The hill is 18.2 m long. What is the horizontal component of the child’s displacement?
*September 21, 2014 by bob*

**physics**

A child rides a toboggan down a hill that descends at an angle of 18.1 to the horizontal. The hill is 34.9 m long. What is the horizontal component of the child’s displacement?
*November 25, 2012 by Anonymous*

**Physics**

Sam, whose mass is 72.0 kg, takes off down a 51.0 m high, 11.0^\circ slope on his jet-powered skis. The skis have a thrust of 180 N. Sam's speed at the bottom is 43.0 {\rm m/s}. What is the coefficient of kinetic friction of his skis on snow?
*October 24, 2011 by Ali*

**Physics **

Sam, whose mass is 73.0kg , takes off down a 50.0m high, 12.0∘ slope on his jet-powered skis. The skis have a thrust of 210N . Sam's speed at the bottom is 45.0m/s . What is the coefficient of kinetic friction of his skis on the snow?
*October 14, 2014 by jrow*

**physics**

a 75.0 kilogram skier is at the top of a hill that is thirty degrees above the horizontal. the skier starts form and then travels down the hill which is 100 meters long. the skier at the bottom of the hill instantaneously then travels on flat horizontal snow. the coeefficient ...
*November 15, 2010 by marie *

**Physics**

A child insists on going sledding on a barely snow-covered hill. The child starts from rest at the top of the 60 m long hill which is inclined at an angle of 30o to the horizontal, and arrives at the bottom 8.0 s later. What is the coefficient of kinetic friction between the ...
*February 11, 2012 by Mary*

**physics**

A 40.0 kg wagon is towed up a hill inclined at 17.9° with respect to the horizontal. The tow rope is parallel to the incline and has a tension of 140 N. Assume that the wagon starts from rest at the bottom of the hill, and neglect friction. How fast is the wagon going after ...
*October 10, 2009 by luc*

**Physics Energy and Work**

A 20.0 kg child on skis, initially at rest, slides 2.0 m down an incline at an angle of 20.0 degrees with the horizontal. If there is no friction between incline and skis, what is the kinetic energy of the child at the bottom of the incline?
*November 27, 2012 by Rose*

**physics**

Secret agent Samantha Bond, 43.00 kg, has just ignited her jet powered skis at the foot of a 10.0 degree slope that rises in height by 50.0 m. The skis have a thrust of 226.0 N. When she gets to the top of the slope, she keeps the skis at 10.0 degrees as she flies through the ...
*September 19, 2012 by Anonymous*

**Physics help **

A 75.0 kg novice skier is going down a hill with several secondary hills. Ignore frictional effects and assume the skier does not push off or slow himself down. If the initial hill is 38.7 m above the chalet level: (8 marks) a) What is the speed of the skier at the bottom of ...
*January 12, 2016 by silverback*

**Physics**

Calculate the final speed of a skier who skis down a 70.8 m high hill, if her initial speed is 2.18 m/s
*February 9, 2015 by Jessy*

**Physics**

Some sliding rocks approach the base of a hill with a speed of 11.0 m/s. The hill rises at 44.0 degrees above the horizontal and has coefficients of kinetic and static friction of 0.410 and 0.630, respectively, with these rocks. 1) Find the acceleration of the rocks as they ...
*September 30, 2010 by .*

**Physics**

A 2.0 x 103 kg car is pulled 345 m up a hill that make s an angle of 15° with the horizontal. What is the potential energy of the car at the top of the hill? If the car rolls down the hill, what will its speed be if we neglect friction? plz help? confused
*January 17, 2008 by James*

**Physics**

A 2.0 x 103 kg car is pulled 345 m up a hill that make s an angle of 15° with the horizontal. What is the potential energy of the car at the top of the hill? If the car rolls down the hill, what will its speed be if we neglect friction? plz help? confused
*January 17, 2008 by James*

**Physics**

A 2.0 x 103 kg car is pulled 345 m up a hill that make s an angle of 15° with the horizontal. What is the potential energy of the car at the top of the hill? If the car rolls down the hill, what will its speed be if we neglect friction? plz help? confused
*January 17, 2008 by James*

**physics**

A 38.2 kg wagon is towed up a hill inclined at 19° with respect to the horizontal. The tow rope is parallel to the incline and exerts a force of 140 N on the wagon. Assume that the wagon starts from rest at the bottom of the hill, and disregard friction.How fast is the wagon ...
*December 5, 2010 by Corey*

**physics**

A 38.2 kg wagon is towed up a hill inclined at 19° with respect to the horizontal. The tow rope is parallel to the incline and exerts a force of 140 N on the wagon. Assume that the wagon starts from rest at the bottom of the hill, and disregard friction.How fast is the wagon ...
*December 5, 2010 by Corey*

**physics**

A 1400kg car starts at rest and rolls down a hill from a height of 12m. (a) how much kinetic energy does the car have at the bottom of the hill?(b) how fast is the car going at the bottom of the hill? Can someone explain how to do it!
*November 30, 2011 by kiki*

**Math help please**

Which hill described in the table is the steepest? Explain. Street|Horizontal distance|vertical rise Dixie |80 |40 hill | Bell |80 |20 hill | | Liberty|80 |60 hill | | A)Bell Hill;it rises 1 foot for every 4 feet of horizontal travel. B)Dixie Hill; it rises 2 feet for every 1 ...
*June 2, 2015 by UMACBLACKBELT*

**Physics**

A 40.7kg wagon is towed up a hill inclined at 18.1 degrees with respect to the horizontal. The tow rope is parallel to the incline and has a tension of 139N in it. Assume that the wagon starts from rest at the bottom of the hill, and neglect friction. The acceleration of ...
*February 15, 2012 by Ethan*

**calculus**

1. A hill with a 35 degree grade (incline with horizontal) is cut down for a roadbed to a 10 degree grade. If the distance from the base to the top of the original hill is 800 ft., How many vertical ft will be removed from the hill rounded to the nearest ft
*April 30, 2012 by Nolan *

**Geometry**

A hill slopes down from a building with a grade of one for to five feet measured along the horizontal (slope of 1/5). If a ladder 36 ft. long is set against the building, with its foot 12ft. down the hill. How high will it reach the building?
*April 30, 2016 by Anthony*

**Physics**

A bicyclist is coasting straight down a hill at a constant speed. The mass of the rider and bicycle is 85.0 kg, and the hill is inclined at 19.0° with respect to the horizontal. Air resistance opposes the motion of the cyclist. Later, the bicyclist climbs the same hill at the ...
*February 3, 2011 by Lauren*

**Physics**

A bicyclist is coasting straight down a hill at a constant speed. The mass of the rider and bicycle is 55.0 kg, and the hill is inclined at 16.0° with respect to the horizontal. Air resistance opposes the motion of the cyclist. Later, the bicyclist climbs the same hill at the ...
*October 25, 2011 by Kelsey*

**PHYSIC help!**

a cart is pushed uphill on a ramp, goes up and momentarily stops, and then goes back down. predict the position vs. time, velocity vs. time, and the acceleration vs. time for this. IDK how to do this! i tried on the first one. on the graph, i have it looking like an upside-...
*September 30, 2010 by michelle*

**physcis**

biker passes a lamppost at the crest of a hill at + 4.5 m/s. she acceleratets down the hill at a constant rate of +0.40 ,/s2 for 12 seconds.\ how far does she move down the hill during this time?..
*September 18, 2012 by miguel*

**physics**

A 1,600 kg car coasts down a hill starting from rest and decreases its height by 22 m over a distance of 90 m of travel. How fast will it be going at the end of the hill, if friction has no effect in slowing its motion?
*May 5, 2013 by Anonymous*

**physics**

A 35.2 kg wagon is towed up a hill inclined at 18.3◦ with respect to the horizontal. The tow rope is parallel to the incline and exerts a force of 125 N on the wagon. Assume that the wagon starts from rest at the bottom of the hill, and disregard friction. The ...
*October 27, 2014 by Anonymous*

**Physics**

a bike passes a lamp post at the crest of hill at 4.5 m/s. she accelerates down the hill at the rate of 0.04 m/s squared for 12 seconds. how far does she move down the hill during this time ?
*December 13, 2012 by Dawn*

**Math**

9.)Which hill described in the table is the steepest? Explain.' (Table) Street Horizontal Distance (ft) Vertical Rise Dixie Hill 60 20 Bell Hill 60 40 Liberty Hill 60 30 A.)Bel Hill; it rises 2/3 ft for every 1 food of horizontal travel. B.)Dixie Hill; it rises 1 foot for ...
*April 13, 2016 by #FreeGucci*

**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...
*September 27, 2012 by Rebecca*

**Physics**

Could someone please explain how you get this answer??? A skier with a mass of 60.0 kg pushes off with a horizontal speed of 3.0 m/s from the top of a snow covered hill. As he slides down the hill, his height decreases by 42 m over a distance of 100 m of travel. How much will ...
*March 2, 2013 by Demere*

**Physics**

A block of mass 2.50 kg is pushed 2.40 m along a frictionless horizontal table by a constant 10.0 N force directed 25.0° below the horizontal. (a) Determine the work done by the applied force. J (b) Determine the work done by the normal force exerted by the table. J (c) ...
*September 18, 2008 by Lisa*

**college physics**

A block of mass 2.50 kg is pushed 2.40 m along a frictionless horizontal table by a constant 10.0 N force directed 25.0° below the horizontal. (a) Determine the work done by the applied force. J (b) Determine the work done by the normal force exerted by the table. J (c) ...
*September 18, 2008 by Lisa*

**Math: Algebra**

Landon can climb a certain hill at a rate that is 2.5 mph slower than his rate coming down the hill. If it takes him 6 hours to climb the hill and 45 minutes to come down the hill, what is his rate coming down?
*February 1, 2012 by Matt*

**algebra**

Landon can climb a certain hill at a rate that is 3.5 mph slower than his rate coming down the hill. If it take him 4 hours to climb the hill and 135 minutes to come down the hill. what is his rate coming down.
*October 8, 2014 by tierra *

**math**

Erica's average rate going uphill was 80% of her average rate going downhill over the same route, and it took Erica 10 minutes longer to go up the hill than to go down the hill. What was the total number of minutes Erica spent going uphill and downhill?
*August 18, 2012 by Aaron*

**high school physics**

Annie rides her snowboard down a hill sloped at 25 degrees. The coefficient of kinetic friction between her and her skies is .15. If her mass is 55 kg, hw fast is she excelerating? Assuming she starts from rest and the equation is v=v+a*t, what is her velocity after 7 seconds...
*December 8, 2010 by Jess*

**ap physics**

A 52kg skier starts at rest and slides 30m down a hill inclined at 12 degrees relative to the horizontal. List five quantities thatbdescribe the motion of the skier and solve for of them( aleast one of them should be be a kinematic quantity). I know these quantities M: 52 kg ...
*October 9, 2014 by debora*

**Physics**

A 79.5 kg snowboarder heads down a 28.0° hill that has a height of 62.8 m. If the hill is assumed to be frictionless and there is horizontal wind with a force of 98 N acting against the snowboarder, find the speed of the snowboarder as they reach the bottom of the hill using ...
*November 23, 2015 by Anonymous*

**Physics**

A hardworking ant must supply 0.00955 N to pull a small piece of fruit at constant velocity over a distance of 8.60 cm up a small hill to the entrance of the colony. If the coefficient of kinetic friction between the piece of fruit and the 16.2° sloped hill is 0.540, calculate...
*November 3, 2013 by Anonymous*