Sunday

April 19, 2015

April 19, 2015

Number of results: 57,363

**physics**

A traffic light hangs from a pole as shown in the figure(Figure 1) . The uniform aluminum pole AB is 7.50 long and has a mass of 15.0 . The mass of the traffic light is 23.5 . Determine the tension in the horizontal massless cable CD. Determine the vertical and horizontal ...
*October 29, 2012 by Rosanna*

**Physics**

A traffic light hangs from a pole as shown. The uniform aluminum pole AB is 7.70m long and has a mass of 11.0kg. The mass of the traffic light is 27.5m. 1. Determine the tension in the horizontal massless cable CD. 2. Determine the vertical and horizontal components of the ...
*November 2, 2012 by Kristen*

**physics**

A uniform rigid pole of length L and mass M is to be supported from a vertical wall in a horizontal position, as shown in the figure. The pole is not attached directly to the wall, so the coefficient of static friction, μs, between the wall and the pole provides the only ...
*February 27, 2012 by rey*

**physics**

A uniform rigid pole of length L and mass M is to be supported from a vertical wall in a horizontal position, as shown in the figure. The pole is not attached directly to the wall, so the coefficient of static friction, μs,between the wall and the pole provides the only ...
*February 28, 2012 by need help*

**physics**

A uniform rigid pole of length L and mass M is to be supported from a vertical wall in a horizontal position, as shown in the figure. The pole is not attached directly to the wall, so the coefficient of static friction, μs,between the wall and the pole provides the only ...
*February 28, 2012 by Anonymous*

**Physics**

A uniform rigid pole of length L and mass M is to be supported from a vertical wall in a horizontal position, as shown in the figure. The pole is not attached directly to the wall, so the coefficient of static friction, μs,between the wall and the pole provides the only ...
*June 21, 2012 by James*

**physics**

Two skaters, one with mass 62 kg and the other with mass 45 kg, stand on an ice rink holding a pole of length 10 m and negligible mass. Starting from the ends of the pole, the skaters pull themselves along the pole until they meet. How far does the 45 kg skater move?
*November 1, 2011 by Jason*

**Physics**

Two skaters, one with mass 68 kg and the other with mass 47 kg, stand on an ice rink holding a pole of length 8.8 m and negligible mass. Starting from the ends of the pole, the skaters pull themselves along the pole until they meet. How far does the 47 kg skater move? I ...
*November 1, 2011 by Elaina*

**word problem**

A 62 foot rope hangs from the top of a pole. When pulled taut to its fullest length the rope reaches a point on the ground 31 feet from the base of the pole. Find the height of the pole to the nearest tenth of a foot. Let p equal the height of the pole.
*September 24, 2010 by Sammie*

**physics**

A man standing 15.0 ft away from a light pole which is an additional 85.0 ft from a building tries to estimate the height of the building which he has lined up with the top the light-pole. Since he knows that the light-pole is 20.0 ft tall and his line of vision is 5.00 ft ...
*January 20, 2011 by Anonymous*

**Physics 5**

Two blocks are free to slide along the frictionless wooden track ABC shown in Figure P9.20. A block of mass m1 = 5.00 kg is released from A. Protruding from its front end is the north pole of a strong magnet, repelling the north pole of an identical magnet embedded in the back...
*October 20, 2011 by Anonymous*

**math (algebra)**

An auto dealer wants to string a wire from the top of a pole to the ground and hang colorful pennants from it. The distance from the base of the pole to the point where the wire is attached to the ground is 3 times the height of the pole. If the wire is 63 feet long, how tall ...
*April 25, 2013 by danielle*

**math**

a telephone pole is 64 feet long and 5/16 of the pole must be underground a) what fraction of the pole is above ground
*March 2, 2014 by john*

**Physics**

A mas of 100 Kg hangs from a cable secured to a steel pole and supported by another cable as shown below. Find the tension (T) in the support cable and the force (F) on the steel pole.
*March 10, 2012 by Mary*

**Geometry**

A streetlight is mounted on top of a 15 ft. pole. A 6-ft tal man walks away from the pole along straight path. How long is his shadow when he is 40 ft from the pole?
*January 8, 2012 by M.C.*

**math**

the shadow of a pole measured from the foot of the pole is 2.8 m long if the distance form the tip of the shadow from the tip of the pole is 10.5 m then find the length of the pole.
*November 4, 2014 by Zahoor*

**Calculus**

A street light is at the top of a 17 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 6 ft/sec. How fast is the tip of her shadow moving when she is 50 ft from the base of the pole.
*October 8, 2013 by Nathan*

**math**

a flagpole is 25 feet tall. a truck runs into the pole and bends it at the very bottom of the pole but the rest of the pole remains straight. after the accident we measure the angle of elevation to the top of the pole from a point 30 feet from the base of the pole in the same ...
*December 5, 2012 by darian*

**Calculus**

A street light is at the top of a 17 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 6 ft/sec along a straight path. How fast is her shadow lengthening when she is 30 ft from the base of the pole?
*September 24, 2009 by Z32*

**Math**

A street light is mounted at the top of a 15-ft-tall pole. A man 6 ft tall walks away from the pole with a speed of 7 ft/s along a straight path. How fast is the tip of his shadow moving when he is 45 ft from the pole?
*November 2, 2012 by AH*

**calculus**

A street light is mounted at the top of a 15-ft-tall pole. A man 6 ft tall walks away from the pole with a speed of 7 ft/s along a straight path. How fast is the tip of his shadow moving when he is 45 ft from the pole? ft/s
*November 9, 2012 by kela*

**Physics**

If the flagpole has a mass of 21 kg and length 10 m and the angle the cable makes with the pole is ϕ = 20°, what are the magnitude and direction of the force exerted by the hinge on the flagpole? Assume the mass of the pole is distributed uniformly.
*November 22, 2010 by J Velji*

**math**

A street light is at the top of a 18 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 8 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 35 ft from the base of the pole?
*March 25, 2008 by shelby*

**calculus**

A street light is at the top of a 17 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 6 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 40 ft from the base of the pole?
*November 17, 2008 by laquisha*

**Calculus 1**

A street light is at the top of a 19 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 4 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 50 ft from the base of the pole?
*March 25, 2010 by Anonymous*

**calculus**

A street light is at the top of a 16 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 4 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 40 ft from the base of the pole?
*August 28, 2010 by jin*

**calculus**

A street light is at the top of a 15 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 4 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 30 ft from the base of the pole
*November 5, 2010 by Nikki*

**calculus**

A street light is at the top of a 16 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 4 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 30 ft from the base of the pole?
*October 4, 2011 by Anonymous*

**calculus**

A street light is at the top of a 20 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 6 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 35 ft from the base of the pole?
*October 5, 2011 by neil*

**calculus**

A street light is at the top of a 13 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 7 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 35 ft from the base of the pole?
*November 26, 2011 by crystal *

**calculus**

A street light is mounted at the top of a 6-meter-tall pole. A man 2 m tall walks away from the pole with a speed of 1.4 m/s along a straight path. How fast is the tip of his shadow moving when he is 16 m from the pole?
*October 16, 2012 by sara*

**Calculus**

A street light is at the top of a 15 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 5 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 50 ft from the base of the pole?
*March 23, 2015 by Aggie123*

**geometry**

A person 6 ft tall is standing near a treet light so that he is 4/10 of the distance from the pole to the tip of his shadow.How high above the ground is the light bulb? If the persons head is exactly 5ft from the light bulb how far is the person from the pole,and how long is ...
*August 23, 2011 by neil*

**Physics**

A floodlight with a mass of 20.0 kg is used to illuminate the parking lot in front of a library. The floodlight is supported at the end of a horizontal beam that is hinged to a vertical pole. A cable that makes an angle of 30 degrees with the beam is attached to the pole to ...
*March 10, 2008 by Jessica*

**Physics**

Planet Earth as a Spring. Assume that the Earth is perfect sphere of mass M=5.98x10^24kg, radius 6,370km, and uniform density. Imagine a long, straight tunnel through the center of the Earth, connecting the North and South poles . A capsule of mass m is dropped into this ...
*February 19, 2013 by Betty Ariston*

**MATH**

There is a flag pole that is 12ft tall its shadow is 18 ft long there is a man that is 6 ft standing next to the pole how long is his shadow? How would i figure this out
*December 27, 2007 by Tiffany Johnson*

**calculus**

A street light is at the top of a 19 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 5 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 40 ft from the base of the pole? Rate =
*April 24, 2011 by saud*

**MAGNET**

1. The figure shows a conducting loop of wire in the field of a magnet which is behind the loop. The South Pole of the magnet is facing the loop as shown. The North Pole is further behind and is not shown in the figure. I now lift the loop straight out of the page. Describe, ...
*July 27, 2009 by MP*

**math word problems**

A black pole 3 yd 2 ft long was 2 ft longer than a white pole. When part of the black pole was cut away, it was 1 yd 1 ft shorter than the white pole. How much of the white pole was cut away?
*March 23, 2014 by Anonymous*

**calc related rates**

A street light is at the top of a 18 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 6 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 45 ft from the base of the pole?
*October 24, 2011 by Bernardo*

**Analytic Geometry(Math)**

a person 6 ft. tall s standing near a street light so that he is 4/10 of the distance from the pole to the tip of his shadow. How high above the ground is the light bulb? if the person's head is exactly 5ft from the light bulb. how far is the person from the pole and how long ...
*November 25, 2013 by Megs*

**Algebra 1**

a girl that was 4 and a half feet tall was standing next to a telephone pole. at one 'o clock, her shadow was 8 ft. long, and the pole's was (i think) 36 ft. long, how tall was the pole? this is from memory, since i forgot to bring the paper home. but i believe that is it. I ...
*May 15, 2008 by Libby*

**College Physics**

a 5.63kg ball hangs from a vertical pole by a 2.4 long string. Assume the ball is moving at 4.33m/s in a horizontal circle with the string remaining taut. Calculate the angle that the string makes with the pole.
*October 1, 2012 by Nicole*

**math**

a pole leans away from the sun at an angle of 7 degrees to the vertical. when the elivation of the sun is 48 degrees the pole cast a shadow of 41ft long on level ground. how long is the pole?
*April 23, 2012 by Anonymous*

**Pre-Calculus-Trig**

A pole tilts 12 degrees from the vertical, away from the sun, casts a 34 foot long shadow on level ground. The angle of elevation from the end of the shadow to the top of the pole is 64 degrees. How long is the pole?
*January 30, 2011 by Chloe Mack*

**physics**

A 2.70 m long pole is balanced vertically on its tip. What will be the speed (in meters/second) of the tip of the pole just before it hits the ground? (Assume the lower end of the pole does not slip.)
*April 26, 2013 by Nicole *

**Physics**

A 25.0 m tall hollow aluminum flagpole is equivalent in strength to a solid cylinder of aluminum 3.50 cm in diameter. A strong wind bends the pole much as a horizontal force of 900 N exerted at the top would. How far to the side does the top of the pole flex? I am almost 100% ...
*February 21, 2015 by Jimmy*

**math**

A street light is at the top of a 16.0 ft. tall pole. A man 5.9 ft tall walks away from the pole with a speed of 5.5 feet/sec along a straight path. How fast is the tip of his shadow moving when he is 47 feet from the pole?
*November 12, 2014 by Charlie*

**physics**

In the figure, two skaters, each of mass 58.0 kg, approach each other along parallel paths separated by 2.79 m. They have opposite velocities of 1.50 m/s each. One skater carries one end of a long pole of negligible mass, and the other skater grabs the other end as she passes...
*December 5, 2013 by kristy*

**Trig**

A vertical pole stands on a 20° slope from 50 m down the slope from the pole the angle of elevation of the top of the pole is 35 degrees. How tall is the pole
*April 15, 2014 by Beth*

**algebra**

Jenny is 5ft 2in. tall. To find the height of a light pole, she measured her shadow and the pole shadow What is the height of the pole?
*January 25, 2012 by kelly*

**math**

A street light is mounted at the top of a 19-ft-tall pole. A man 5.5 feet tall walks away from the pole with a speed of 14 ft/s along a straight path. How fast is the tip of his shadow moving when he is 100 feet from the pole?
*October 18, 2013 by Edward*

**physics**

In a farm yard, a 20.0-kg light is suspended from a light beam on the end of a tall pole. The beam is supported by an arm that attaches to the beam at the suspension point of the light, as shown in the diagram below. The arm makes an angle of 50.0 with the pole. Ignore...
*March 22, 2015 by Trex*

**Trigonometry **

A vertical pole 35m high, standing on sloping ground is braced by a wire which extends from the top of the pole to a point on the ground 25 m from the foot of the pole. If the pole subtends an angle of 30 degrees at the point where the wire reaches the ground, how long is the ...
*March 20, 2015 by ely*

**Physics**

Starting from rest, a 98-kg firefighter slides down a fire pole. The average frictional force everted on him by the pole has a magnitude of 720 N, and his speed at the bottom of the pole is 3.8 m/s. How far did he slide down the pole?
*November 16, 2010 by Shannon*

**Physics**

Starting from rest, a 98-kg firefighter slides down a fire pole. The average frictional force everted on him by the pole has a magnitude of 700 N, and his speed at the bottom of the pole is 3.4 m/s. How far did he slide down the pole?
*October 19, 2014 by Sam*

**Calculus**

A street light is at the top of a 19 foot tall pole. A 6 foot tall woman walks away from the pole with a speed of 7 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 30 feet from the base of the pole?
*April 3, 2012 by Joe*

**college**

a guy wire 27 feet long runs from the top of the pole to a spot on the ground. I f the height of the pole is 6 feet longer than the from the base of the pole to the spot where the guy wire is anchored, how tall is the pole?
*April 21, 2013 by Anonymous*

**Math**

A woman wants to measure the height of a nearby tower. She places a pole in the shadow of the tower so that the shadow of the pole is exactly covered by the shadow of the tower. The distance between the pole and the tower is , and the pole casts a shadow that is long. How tall...
*December 19, 2010 by Chloe*

**Calc**

A street light is at the top of a 16ft tall pole. A woman 6ft tall walks away from the pole with a speed of 6ft/sec along a straight path. How fast is the tip of her shadow moving when she is 30ft from the base of the pole?
*June 18, 2013 by Morgan*

**Physics**

A flag pole consists of a 2.0 m long, 5.0 kg decorative ball on the end. What is the gravitational torque on the flag pole, calculated about an axis at the fixed end of the pole?
*November 28, 2008 by Sandhya*

**MATH**

a guy wire is connected 3 ft. from the top of a pole. The guy wire is 36 ft long and it is fastened to an anchor in the ground that is 12ft. from the base of the pole. How tall is the pole? (nearest tenth) PLEASE HELP! =)
*December 14, 2008 by REANNA*

**Simple Math**

Please explain to me what I need to do . A cable 35 feet long runs from the top of a utility pole to a point on the ground 30 feet from the base of the pole. How tall is the utility pole ?
*April 5, 2013 by Jessica*

**elementary math for teachers **

The diagram depicts a rope connecting the top of a pole to the ground. The rope is 27 yd long and touches the ground 23 yd from the pole. How tall is the pole?
*October 15, 2009 by jen*

**trig**

A pole is braced with a wire from the top of a pole to the ground. The wire is 100 feet long and makes an angle of 40° with the ground. Find the height of the pole.
*March 15, 2013 by Anonymous*

**Algebra II**

A hill is inclined 15 degrees to the horizontal. A 40-foot pole stands at the top of the hill. How long a rope will it take to reach from the top of the pole to a point 68 feet downhill from the base of the pole?
*May 17, 2010 by Lyndsie*

**Algebra II**

A hill is inclined 15 degrees to the horizontal. A 40-foot pole stands at the top of the hill. How long a rope will it take to reach from the top of the pole to a point 68 feet downhill from the base of the pole?
*May 17, 2010 by Lyndsie*

**geometry**

A cable 22 feet long runs from the top of a utility pole to a point on the ground 15 feet from the base of the pole. How tall is the utility pole? - thanks!
*March 28, 2011 by christina*

**algebra**

A cable 25 feet long runs from the top of a utility pole to a point on the ground 18 feet from the base of the pole. How tall is the utility pole?
*March 29, 2011 by Francisca*

**trig**

guy wire is attached to a pole for support. If the angle of elevation to the pole is 67° and the wire is attached to the ground at a point 137 feet from the base of the pole, what is the height of the pole (round to 2 decimal places)?
*October 28, 2011 by shye*

**Dwamena Akenten SHS**

A pole 25m long is placed against a vertical wall such that its lower end is 7m from the foot of the wall on the same horizontal ground. If the upper end of the pole is push down by 2m, calculate correct to 2 significant figure: 1) how much further away from the wall the lower...
*May 3, 2013 by Derrick*

**physics**

A 0.700-kg ball is on the end of a rope that is 0.90 m in length. The ball and rope are attached to a pole and the entire apparatus, including the pole, rotates about the pole's symmetry axis. The rope makes an angle of 70.0° with respect to the vertical as shown. What is the ...
*February 16, 2012 by Angelina*

**maths**

Two vertical poles, 3m and 7m long are on the same straight line with a point P on the ground. The shorter pole is 20m from P and the longer pole. The angle of elevation of the top T of the longer pole from the top R of the shorter one is 30degree, calculate i) /RT/ ii) the ...
*May 3, 2013 by Derrick*

**physics7**

A 81.0-kg (179 lb) boxer has his first match in the Canal Zone (g = 9.782 m/s2) and his second match at the North Pole (g = 9.832 m/s2). (a) What is his mass in the Canal Zone? (b) What is his weight in the Canal Zone? (c) What is his mass at the North Pole? (d) What is his ...
*December 11, 2011 by Hannah*

**trigonometry**

at a point 27 m from the front of a pole, the angle of elevation of the top of the pole is 53. find the height of the pole
*August 7, 2011 by mae*

**Physics**

8. A 4.70 m long pole is balanced vertically on its tip. What will be the speed (in meters/second) of the tip of the pole just before it hits the ground? (Assume the lower end of the pole does not slip.) I did V^2=0^2+2(9.8)(4.70) and was wrong. I did remember to square root ...
*April 15, 2015 by Victoria*

**Physics**

8. A 4.70 m long pole is balanced vertically on its tip. What will be the speed (in meters/second) of the tip of the pole just before it hits the ground? (Assume the lower end of the pole does not slip.) I did V^2=0^2+2(9.8)(4.70) and was wrong. I did remember to square root ...
*April 15, 2015 by Victoria*

**calculus**

A street light is at the top of a 15.000 ft. tall pole. A man 6.300 ft tall walks away from the pole with a speed of 6.000 feet/sec along a straight path. How fast is the tip of his shadow moving when he is 45.000 feet from the pole?
*October 28, 2013 by Matt*

**trig**

A wind storm caused a 64 ft pole to lean due easwt at an angle of 63.8 degrees to the ground. A 106 ft long guy wire is then attached to the top of the pole and anchored in the ground due west of the foot of the pole. How far from the foot of the pole is the guy wire anchored?
*February 18, 2010 by Lori*

**math**

Search results for "a monky climbs 4 metres of a pole in 1 minute, but slips 2 metres in next minute.in how much time he will reach the top of a pole 15 metres long?assume that he starts from the bottom of the pole."
*November 3, 2014 by bipin*

**Geometry**

a 31 meter pole breaks and the tip touches the ground 10 meters from the base of the pole. How tall is the part of the pole that is still standing?
*November 18, 2010 by Michael*

**Math**

A telephone pole anchored to the ground by a cable called guy wire at a point of 5m from the base of the pole. The wire make an angle of 72.5 with the horizontal. What is the height of the pole where the guy wire is attached to the pole?
*September 3, 2014 by Jeila*

**AP Physics**

A light string that is attached to a large block of mass 4m passes over a pulley with negligible rotational inertia and is wrapped around a vertical pole of radius r. The system is released from rest, and as the block descends the string unwinds and the vertical pole with its ...
*February 18, 2008 by Mary*

**ALGEBA**

A POLE IS LEANING AGANIST A TREE SO THAT THE TOP OF THE POLE IS AT A HEIGHT OF 22FT.THE BUTTON OF THE POLE IS ON THE GEOUND 6FT AWAY THE TREE.WHAT IS THE SLOPE OF THE POLE LEANING AGAINST THEE TREE
*November 27, 2010 by SAO*

**chapter 14, lesson 5**

max cut a pole into 4 equal pieces. then he cut 2 inches off one piece of the pole. then piece left was 4 inches long. how long was the pole to before Max started cutting?
*March 19, 2013 by nicole*

**Math: Trig**

to determine the height of a pole across a road, Justin takes two measurments. he stands at Point A directly across from the bass of the pole and determines that the angle of elevation to the top of the pole is 15.3 degrees. he then walks 30m parallel to the freeway to point C...
*December 11, 2011 by Frany*

**Math**

A street light is at the top of a 17 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 8 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 30 ft from the base of the pole? Must be accurate to fifth decimal place. I have ...
*October 5, 2014 by Leah*

**University math grade 11 Trig**

A very tall light standard is swaying in an east-west direction in a strong wind. An observer notes that the time difference between the vertical position and the furthest point of sway was 2 seconds. The pole is 40 metres tall. At the furthest point of sway, the top of the ...
*June 20, 2009 by Liza*

**Physics**

A long pole is used to lift a window. If a vertical lift of 80N is needed to raise the window, what force must be exerted along the pole? Assume the pole makes an angle of 34 degrees with the vertical wall.
*May 22, 2012 by Lisa*

**math**

Draw a big diagram You end up with a triangle with: the horizontal side = 47 ft the side representing the leaning pole ... call it a and the angle opposite the pole side = 51° The pole makes an angle of 7° with the vertical ... so the angle between to pole side and the 47ft ...
*March 20, 2013 by Anonymous*

**calculus**

The moment of inertia about the pole(origin) of the plane region which is inside the cardiod: r = 1 + cosO and outside the circle r =1. It's mass density is equal to it's distance from the pole..... I need someone who is way smarter than me to help with this one... please and ...
*December 8, 2010 by Justin*

**Math**

An 8 meters bamboo pole is leaning against a coconut tree. The foot of the pole is 3 meters from the base of the tree. What angle does the pole make with the tree if the pole reaches up to the top of the tree? HELP PLEASE!
*October 15, 2012 by Katy *

**geometry**

how long is a string reaching from the top of a 20 ft pole to a point 13 ft from the bottom of the pole?
*May 2, 2012 by Nicole*

**Geometry**

Jenny is 5ft 2in tall to find the height of The light pole she measured her shadow And the poles shadow what is The height of the light pole
*February 4, 2014 by Anonymous*

**physics**

Two men are carrying a 9.00-m telephone pole that has a mass of 115 kg. If the center of gravity of the pole is 3.00 m from the right end, and the men lift the poles at the ends, how much weight must each man support?
*November 9, 2009 by sandhu*

**geometry**

A guy wire is used to stabilize a utility pole. The wire is fastened to the pole 25 feet above the ground, and staked into the ground 4 feet from the base of the pole. (No stand-offs are used, the wire goes directly from the pole to the ground stake.) Someone recommends that ...
*October 14, 2009 by Jalysa *

**Physics..Urgent!!!**

In the sport of pole vaulting, the jumper's point of mass concentration, called the centre of mass, must clear the pole. Assume that a 59 kg jumper must raise the centre of mass from 1.1 m off the ground to 4.6 m off the ground. What is teh jumper's potential energy at the top...
*April 9, 2011 by Anonymous*

**AP Physics**

A light string that is attached to a large block of mass 4m passes over a pulley with negligible rotational inertia and is wrapped around a vertical pole of radius r. The system is released from rest, and as the block descends the string unwinds and the vertical pole with its ...
*February 18, 2008 by Mary*

**math**

An electric pole is supported to stand vertically on a level ground by a tight wire. The wire is pegged at a distance of 6 meters from the foot of the pole as shown. The angle that the wire makes the ground is three times the angle it makes with the pole. Calculate the length ...
*May 27, 2012 by anonymous*

**trig**

Two people decide to estimate the height of a flagpole. One person positions himself due north of the pole and the other person stands due east of the pole. If the two people are the same distance from the pole and a = 30 feet from each other, find the height of the pole if ...
*February 10, 2013 by Tina*