Wednesday

April 16, 2014

April 16, 2014

Number of results: 101,679

**physics 111**

A ball of mass 0.120 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.600 m. What impulse was given to the ball by the floor? answer in kg·m/s
*Wednesday, October 27, 2010 at 2:00pm by Blake *

**physics**

A ball of mass 0.120 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.600 m. What impulse was given to the ball by the floor?
*Monday, July 7, 2008 at 5:14pm by Elisa*

**physics**

A ball of mass 0.120 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.600 m. What impulse was given to the ball by the floor?
*Friday, October 14, 2011 at 5:42pm by Anonymous*

**physics**

1. A centrifuge in a medical laboratory rotates at an angular speed of 3650 rev/min. When switched off, it rotates through 50.0 revolutions before coming to rest. Find the constant angular acceleration of the centrifuge. 2. A ball of mass 0.120 kg is dropped from rest from a ...
*Sunday, July 6, 2008 at 11:03pm by Elisa*

**Physics**

A 0.135 kg ball is dropped from rest. If the magnitude of the ball's momentum is 0.730 kg·m/s just before it lands on the ground, from what height was it dropped?
*Thursday, April 22, 2010 at 2:32pm by Physics*

**Physics**

A 0.135 kg ball is dropped from rest. If the magnitude of the ball's momentum is 0.730 kg·m/s just before it lands on the ground, from what height was it dropped?
*Thursday, April 22, 2010 at 2:32pm by Physics*

**math**

the height that a ball bounces varies directly as the height from which it is dropped. A ball dropped from a height of 20cm bounces 16cm a) Find the height of the bounce if the ball is dropped from a height of 280cm b) Find from waht height the ball was dropped if it bounces ...
*Tuesday, January 13, 2009 at 8:03pm by lisa*

**momemtum ?**

A ball of mass 0.150 kg is dropped from rest to a height of 0.125 m. It rebounds from the floor to reach a height of 0.960m. What impulse was given by the floor? please help/explain. Thanks!
*Wednesday, June 16, 2010 at 12:39pm by jake*

**math**

how do i work out the following word problem. a particular ball retains half of its heght on each bounce when dropped from a height of 80 m. give the height of the ball on the fifth bounce after being dropped?(will the ball comes to rest?)
*Saturday, May 19, 2012 at 5:54am by ladane*

**Physics**

A 5.80 kg ball is dropped from a height of 14.5 m above one end of a uniform bar that pivots at its center. The bar has mass 9.00 kg and is 6.40 m in length. At the other end of the bar sits another 5.30 kg ball, unattached to the bar. The dropped ball sticks to the bar after ...
*Thursday, April 5, 2012 at 10:35am by Joe*

**physics**

a ball is dropped from a tower of height 5 m. it accelerates uniformly at 10m/s .if mass of the ball is 2 kg ,find the momentum transferred by a ball to the ground on striking.
*Wednesday, October 9, 2013 at 1:58am by TINA*

**Physics**

After falling from rest from a height of 35 m, a 0.49 kg ball rebounds upward, reaching a height of 25 m. If the contact between ball and ground lasted 1.7 ms, what average force was exerted on the ball?
*Thursday, September 20, 2012 at 11:35pm by Freedo*

**math**

when a ball is dropped, it bounces back up 4/5 of the height from the height it was dropped.If the ball dropped from a height of 200cm, how high does it go after bouncing twice.
*Saturday, February 9, 2013 at 4:36pm by leanna*

**physics**

A superball is dropped from rest from a height of 2.0m. It bounces repeatedly from the floor, as superballs are prone to do. After each bounce the ball dissipates some energy, so eventually it comes to rest. The following pattern is observed: After the 1st bounce, the ball ...
*Friday, January 31, 2014 at 12:56am by Chey*

**physics**

A superball is dropped from rest from a height of 2.0m. It bounces repeatedly from the floor, as superballs are prone to do. After each bounce the ball dissipates some energy, so eventually it comes to rest. The following pattern is observed: After the 1st bounce, the ball ...
*Friday, January 31, 2014 at 9:46am by Cheylynne*

**physics**

the coefficient of restitution between the ball and the floor is 0.60 If the ball is drop from rest at the height of 6.6 m from the floor. Find a) what is the maximum height will the ball attain after the first bounce. b) how much kinetic energy is lost duirng the impact if ...
*Monday, February 21, 2011 at 7:25am by robert*

**science **

A ball having a mass of 0.20 kilograms is placed at a height of 3.25 meters. If it is dropped from this height, what will be the kinetic energy of the ball when it reaches 1.5 meters above the ground?
*Thursday, February 21, 2013 at 2:26pm by kavita *

**physics**

a ball has a mass of 0.5kg dropped from a cliff top, the ball srtikes the sea below at a velocity of 10m/s. (a)what is the kinetic energy of the ball as it strikes the sea? (b) what was its potential energy before it was dropped? (c)from what height was it dropped?
*Friday, December 9, 2011 at 1:32pm by sim*

**Physics**

A 0.400-kg ball is dropped from rest at a point 1.80 m above the floor. The ball rebounds straight upward to a height of 0.730 m. What are the magnitude and direction of the impulse of the net force applied to the ball during the collision with the floor?
*Thursday, October 14, 2010 at 1:27pm by Sarah*

**Physics**

A 0.350-kg ball is dropped from rest at a point 1.10 m above the floor. The ball rebounds straight upward to a height of 0.420 m. Taking the negative direction to be downward, what is the impulse of the net force applied to the ball during the collision with the floor?
*Tuesday, January 3, 2012 at 8:38pm by Robert*

**Physics**

A basketball of mass 0.70 kg is dropped from rest from a height of 1.22 m. It rebounds to a height of 0.64 m. How much mechanical energy was lost during the collision with the floor? A basketball player dribbles the ball from a height of 1.22 m by exerting a constant downward ...
*Tuesday, November 27, 2012 at 10:04pm by Physics*

**physics**

A ball of mass 0.1 kg is dropped from a height of 2 m onto a hard surface. If rebounds to a height of 1.5 m and it is in contact with the surface for 0.05s. Calculate the: (a) speed with which it strikes the surface. (b) speed with which it leaves the surface. (c) change in ...
*Saturday, March 15, 2014 at 3:29am by waslat *

**HS Physics**

Please help...I know the direction is up, but I can't figure out the magnitude, except that its label is kg · m/s, I think. A 0.400-kg ball is dropped from rest at a point 1.80 m above the floor. The ball rebounds straight upward to a height of 0.730 m. What are the magnitude ...
*Friday, October 15, 2010 at 6:22pm by Tzana*

**college physics**

A small ball of mass m is aligned above a larger ball of mass M = 0.79 kg (with a slight separation), and the two are dropped simultaneously from height h = 2.0 m. (Assume the radius of each ball is negligible relative to h). (a) If the larger ball rebounds elastically from ...
*Thursday, November 12, 2009 at 9:01pm by Steve*

**Physics**

A ball, dropped from rest, cover 2/7 of the distant to the ground in the last 2 seconds of its fall. From what height was the ball dropped? What was the total time of the fall?
*Sunday, October 11, 2009 at 6:22pm by Robert C*

**PHYSICS**

Long, long ago, on a planet far, far away, a physics experiment was carried out. First, a 0.250 kg ball with zero net charge was dropped from rest at a height of 1.00 m. The ball landed 0.350 s later. Next, the ball was given a net charge of 7.60 muC and dropped in the same ...
*Monday, February 13, 2012 at 5:35am by DAVE*

**physics**

1) a force of 10 N acts on a 5.0 kg object, initially at rest, for 2.5 s. What is the final speed of the object? 2) a 1500 kh car, is allowed to coast along a level track at a speed of 8.0 m/s. It collides and couples with a 2000-kg truck , initially at rest with brakes ...
*Monday, November 29, 2010 at 9:17pm by Joceylin*

**physics**

a .140 kg baseball is dropped from rest from a height of 2.2m above the ground. it rebounds to a height of 1.6 m. what change in the balls momentum occurs when the ball hits the ground?
*Tuesday, February 22, 2011 at 12:10pm by vicki *

**physics**

a .140 kg baseball is dropped from rest from a height of 2.2m above the ground. it rebounds to a height of 1.6 m. what change in the balls momentum occurs when the ball hits the ground
*Wednesday, February 23, 2011 at 7:36am by vicki *

**physics**

two balls are dropped to the ground from different heights. one ball is dropped 2s after the other but they both strike the ground at the same time, 5s after the first is dropped. what is the difference in height from which they are dropped? from what height was the first ball...
*Tuesday, June 14, 2011 at 11:46am by pavatharani*

**algebra1 HELP PLEASE**

Two identical rubber balls are dropped from different heights. Ball 1 is dropped from a height of 100 feet, and ball 2 is dropped from a height of 210 feet. Write a function for the height of each ball. h1(t) = h2(t) = When does ball 1 reach the ground? Round to the nearest ...
*Monday, July 8, 2013 at 11:13am by lisa*

**Physics**

A ball is thrown upward from the ground with an initial speed of 25 m/s; at the same instant, a ball is dropped from rest from a building 15 m high. After how long will the balls be at the same height?
*Thursday, September 20, 2012 at 2:18am by Shayla*

**physics**

A ball is thrown upward from the ground with an initial speed of 25 m/s; at the same instant, a ball is dropped from rest from a building 15 m high. After how long will the balls be at the same height?
*Thursday, September 20, 2012 at 2:21am by Shayla*

**Math**

This chart shows how high a ball bounces when dropped from different heights If this ball is dropped from 350 in how high will it bounce? Drop in inches Bounce Height 50 25 100 50 150 75 200 100 A.200 B.175 C.150 D.120 B?
*Thursday, February 7, 2013 at 7:36pm by Jerald*

**physics**

Long, long ago, on a planet far, far away, a physics experiment was carried out. First, a 0.250 kg ball with zero net charge was dropped from rest at a height of 1.00 m. The ball landed 0.350 s later. Next, the ball was given a net charge of 7.60 muC and dropped in the same ...
*Monday, February 13, 2012 at 5:18pm by kas*

**algeba 1 please I REALY NEED HELP THANK YOU :D**

Two identical rubber balls are dropped from different heights. Ball 1 is dropped from a height of 100 feet, and ball 2 is dropped from a height of 210 feet. Write a function for the height of each ball. h1(t) = h2(t) = When does ball 1 reach the ground? Round to the nearest ...
*Monday, July 8, 2013 at 12:09pm by lisa*

**physic PLEASE I REALLY NEED HELP WITH THIS PROBLEM**

Two identical rubber balls are dropped from different heights. Ball 1 is dropped from a height of 100 feet, and ball 2 is dropped from a height of 210 feet. Write a function for the height of each ball. h1(t) = h2(t) = When does ball 1 reach the ground? Round to the nearest ...
*Monday, July 8, 2013 at 12:42pm by lisa*

**physics**

A rubber ball (mass 0.21 kg) is dropped from a height of 1.7 m onto the floor. Just after bouncing from the floor, the ball has a speed of 3.6 m/s. (a) What is the magnitude and direction of the impulse imparted by the floor to the ball? Magnitude? Direction? (b) If the ...
*Sunday, December 4, 2011 at 7:07pm by glenmore*

**algebra1 HELP PLEASE Thanks you!!**

Two identical rubber balls are dropped from different heights. Ball 1 is dropped from a height of 100 feet, and ball 2 is dropped from a height of 210 feet. Write a function for the height of each ball. h1(t) = h2(t) = When does ball 1 reach the ground? Round to the nearest ...
*Monday, July 8, 2013 at 12:22pm by sandy *

**algebra1 HELP PLEASE Thanks you!!**

wo identical rubber balls are dropped from different heights. Ball 1 is dropped from a height of 100 feet, and ball 2 is dropped from a height of 210 feet. Write a function for the height of each ball. h1(t) = h2(t) = When does ball 1 reach the ground? Round to the nearest ...
*Monday, July 8, 2013 at 1:49pm by lisa*

**Physics**

It takes 2.5 s for a small ball released from rest from a tall building to reach the ground. The mass of the ball is 0.05 kg. Calculate the height from which the ball is released. Ok so I have the time, initial velocity, and the acceleration. But the mass totally throws me off...
*Tuesday, October 9, 2007 at 1:07pm by Lindsay*

**Physics**

I've been stuck on this problem and hope someone can help me. A man is standing on scales which show his weight as 607.6 N. A .50 kg ball is dropped from a height of 1 m into his hands. His hands drop 25 cm from chest level to waist level during the catch.His mass is 62 kg. If...
*Sunday, March 22, 2009 at 3:47pm by Brigid*

**Physics 203**

A 2.4 m long rod of mass m1 = 11.0 kg, is supported on a knife edge at its midpoint. A ball of clay of mass m2 = 5 kg is dropped from rest from a height of h = 1.1 m and makes a perfectly inelastic collision with the rod 0.9 m from the point of support. Find the angular ...
*Wednesday, April 13, 2011 at 7:06pm by Kayla *

**physic**

Two balls are conneted by a string that stretches over a massless, frictionless pulley. Ball 1 has a mass of 0.81 kg and is held 0.5 m above the ground. Ball 2 has a mass of 6.3 kg and is held 0.28 m above the ground. When the balls are released, ball 2 falls to the ground, ...
*Sunday, January 15, 2012 at 12:29am by Anonymous*

**physics**

Two balls are conneted by a string that stretches over a massless, frictionless pulley. Ball 1 has a mass of 0.81 kg and is held 0.5 m above the ground. Ball 2 has a mass of 6.3 kg and is held 0.28 m above the ground. When the balls are released, ball 2 falls to the ground, ...
*Sunday, December 21, 2008 at 12:09pm by Anonymous*

**physics**

A rubber ball of mass 18.0 g is dropped from a height of 1.75 m onto a floor. The velocity of the ball is reversed by the collision with the floor, and the ball rebounds to a height of 1.55 m. What impulse was applied to the ball during the collision?
*Sunday, October 16, 2011 at 5:36pm by Kellie*

**physics**

A rubber ball of mass 19.5 g is dropped from a height of 1.85 m onto a floor. The velocity of the ball is reversed by the collision with the floor, and the ball rebounds to a height of 1.55 m. What impulse was applied to the ball during the collision?
*Friday, February 24, 2012 at 12:49am by Tyler*

**Physics**

A rubber ball of mass 41.5 g is dropped from a height of 1.75 m onto a floor. The velocity of the ball is reversed by the collision with the floor, and the ball rebounds to a height of 1.55 m. What impulse was applied to the ball during the collision?
*Friday, February 24, 2012 at 11:46am by Anonymous*

**physics**

A rubber ball of mass 43.5 g is dropped from a height of 2.05 m onto a floor. The velocity of the ball is reversed by the collision with the floor, and the ball rebounds to a height of 1.55 m. What impulse was applied to the ball during the collision?
*Monday, October 14, 2013 at 8:36pm by Anonymous*

**Physics**

Two balls are connected by a string that stretches over a massless, frictionless pulley. Ball 1 has a mass of 0.45 kg and is held 0.74 m above the ground. Ball 2 has a mass of 5.7 kg and is held 0.88 m above the ground. When the balls are released, ball 2 falls to the ground, ...
*Sunday, December 21, 2008 at 3:05am by jason*

**physics**

A ball of mass 1.2kg and a volume of 35cm cubed is dropped from a height of 2m. Determine the height to which this ball will bounce.
*Sunday, September 5, 2010 at 3:31pm by Joe*

**math**

a ball rebounds one half of the height from which it was dropped. The ball is dropped from a height of 160 feet and keeps bouncing. what is the total vertical distance the ball will travel from the moment it is droppedto the moment it hits the floor for the fifth time?
*Thursday, July 9, 2009 at 7:48pm by laly*

**maths**

A ball is dropped from a height of 1 metre. At every bounce it travels half of the height it travelled it with the previous flight. Find the total distance travelled when the ball comes to rest.
*Thursday, December 27, 2012 at 8:25am by anitha*

**physics**

A mass of 5.25-kg was dropped from a height of 31 m. How much time does it take for the mass to reach the ground?
*Thursday, August 25, 2011 at 5:37pm by kayla*

**Math **

a ball rebounds 1/2 of the height from which it is dropped. The ball is dropped from a height of 136 feet and keeps on bouncing. How far will it traveled when it strikes the ground the third time?
*Sunday, August 29, 2010 at 4:02am by Karen*

**physics**

A cue ball (mass = 0.140 kg) is at rest on a frictionless pool table. The ball is hit dead center by a pool stick which applies an impulse of +1.60 N·s to the ball. The ball then slides along the table and makes an elastic head-on collision with a second ball of equal mass ...
*Wednesday, December 7, 2011 at 7:03pm by s*

**Physics**

A ball of mass 0.15kg is dropped from rest at a height of 1.25m. it rebounds from the floor to reach a height of 0.960n. what impulse is given to the ball from the floor? i dont have a clue where to start. i know impulse is constant force x change in time or time elapsed, but ...
*Sunday, October 21, 2007 at 5:39am by natali*

**Physics**

After a 0.200-kg rubber ball is dropped from a height of 1.95 m, it bounces off a concrete floor and rebounds to a height of 1.45 m. (a) Determine the magnitude and direction of the impulse delivered to the ball by the floor. (b) Estimate the time the ball is in contact with ...
*Wednesday, March 5, 2014 at 9:29pm by Joe*

**Physics**

After a 0.200-kg rubber ball is dropped from a height of 1.95 m, it bounces off a concrete floor and rebounds to a height of 1.45 m. (a) Determine the magnitude and direction of the impulse delivered to the ball by the floor. (b) Estimate the time the ball is in contact with ...
*Friday, March 7, 2014 at 12:24am by Joe*

**Physics**

A 0.125-kg baseball is dropped from rest. If the magnitude of the baseball's momentum is 0.750 kg * m/s just before it lands on the ground, from what height was it dropped?
*Tuesday, March 29, 2011 at 7:09pm by Jason*

**Physics**

A cue ball (mass = 0.150 kg) is at rest on a frictionless pool table. The ball is hit dead center by a pool stick which applies an impulse of +1.45 N·s to the ball. The ball then slides along the table and makes an elastic head-on collision with a second ball of equal mass ...
*Sunday, October 24, 2010 at 4:48pm by Xavier*

**physics**

A cue ball (mass = 0.140 kg) is at rest on a frictionless pool table. The ball is hit dead center by a pool stick which applies an impulse of +1.60 N·s to the ball. The ball then slides along the table and makes an elastic head-on collision with a second ball of equal mass ...
*Wednesday, December 7, 2011 at 8:34pm by Anonymous*

**AP Physics**

a ball of mass 3 kg is moving with a velocity of 10 m/s. This ball collides with a second ball of mass 0.5 kg that is at rest. After the collison, the first ball is at rest. What is the velocity after the collison of the second ball if the collison is inelastic?
*Tuesday, October 18, 2011 at 11:51pm by Kailyn*

**AP Physics**

a ball of mass 3 kg is moving with a velocity of 10 m/s. This ball collides with a second ball of mass 0.5 kg that is at rest. After the collison, the first ball is at rest. What is the velocity after the collison of the second ball if the collison is inelastic?
*Tuesday, October 18, 2011 at 11:53pm by Kailyn*

**Science**

A ball of mass 200 g is dropped from a height 3 m above the ground onto a hard floor, and rebounds to a height of 2.2 m. If the ball is in contact with the floor for 0.002 s calculate the average force exerted by the floor on the ball
*Friday, March 7, 2014 at 2:29pm by Thobiswa*

**Physics**

Starting with an initial speed of 5.00 m/s at a height of 0.335 m, a 1.75-kg ball swings downward and strikes a 4.40-kg ball that is at rest, as the drawing shows. (a) Using the principle of conservation of mechanical energy, find the speed of the 1.75-kg ball just before ...
*Sunday, March 23, 2014 at 7:36pm by Bo*

**Physics**

After falling from rest from a height of 27 m, a 0.53 kg ball rebounds upward, reaching a height of 17 m. If the contact between ball and ground lasted 1.6 ms, what average force was exerted on the ball?
*Friday, February 25, 2011 at 5:55pm by Anonymous*

**Physics**

After falling from rest from a height of 30 m, a 0.49 kg ball rebounds upward, reaching a height of 20 m. If the contact between ball and ground lasted 2.5 ms, what average force was exerted on the ball?
*Monday, September 12, 2011 at 7:53pm by LeVonte*

**physics**

After falling from rest from a height of 30 m, a 0.48-kg ball rebounds upward, reaching a height of 20 m. If the contact between ball and ground lasted 1.8 ms, what average force was exerted on the ball?
*Monday, February 25, 2013 at 4:40pm by adam*

**physics**

After falling from rest from a height of 26 m, a 0.49-kg ball rebounds upward, reaching a height of 16 m. If the contact between ball and ground lasted 1.8 ms, what average force was exerted on the ball?
*Wednesday, March 20, 2013 at 10:05am by matt*

**Physics please help cant figure this out**

starting with an initial speed of 5.00 m/s at a height of 0.265 m, a 1.75 kg ball swings downward and strikes a 4.45 kg ball that is at rest, as the drawing shows. (a) Using the principle of conservation of mechanical energy, find the speed of the 1.75 kg ball just before ...
*Friday, November 5, 2010 at 9:45am by joseph *

**college physics**

After falling from rest from a height of 34 m, a 0.47 kg ball rebounds upward, reaching a height of 24 m. If the contact between ball and ground lasted 1.8 ms, what average force was exerted on the ball?
*Tuesday, September 21, 2010 at 8:17pm by halley*

**college physics**

After falling from rest from a height of 34 m, a 0.47 kg ball rebounds upward, reaching a height of 24 m. If the contact between ball and ground lasted 1.8 ms, what average force was exerted on the ball?
*Tuesday, September 21, 2010 at 10:20pm by mary*

**physics**

After falling from rest at a height of 31.5 m, a 0.564 kg ball rebounds upward, reaching a height of 20.2 m. If the contact between ball and ground lasted 1.80 ms, what average force was exerted on the ball?
*Wednesday, February 12, 2014 at 5:28pm by sam*

**physics**

A ball of mass .3 kg is dropped from a height of 10m. Its momentum when it strikes the ground is? I know p=mv how would I find velocity for this problem? Thanks in advance for your help.
*Wednesday, October 24, 2007 at 3:12pm by Tammy*

**physics**

A 9.0 kg iron ball is dropped onto a pavement from a height of 110 m.If half of the heat generated goes into warming the ball, find the temperature increase of the ball. (In SI units, the specific heat capacity of iron is 450 J/kg*degree C.)
*Tuesday, April 3, 2012 at 9:40pm by Jim*

**PHYSICS**

A ball of mass 0.150kg is dropped from a height of 1.25m. It rebounds from the floor to reach a height of 0.960m. What impulse was given to the ball by the floor?
*Saturday, March 29, 2008 at 4:39pm by JIM*

**physical science**

A 12-kg iron ball is dropped onto a pavement from a height of 90m. Suppose half of the heat generated goes into warming the ball. What is the temperature increase of the ball in degree C
*Sunday, October 6, 2013 at 9:21pm by martha*

**Math**

A ball is dropped from a height of 36 feet. The quadratic equation d=1/2 gt^2 is used to calculate the distance (d) the ball has fallen after t seconds. The constant g is the acceleration of gravity, 9.8m/s^2. How long does it take the ball to hit the ground? A ball in problem...
*Monday, November 19, 2012 at 11:37am by Lux*

**Math**

ball is dropped from a height of 36 feet. The quadratic equation d=1/2 gt^2 is used to calculate the distance (d) the ball has fallen after t seconds. The constant g is the acceleration of gravity, 9.8m/s^2. How long does it take the ball to hit the ground? A ball in problem 2...
*Monday, November 19, 2012 at 11:37am by Anonymous*

**calculus**

A ball has bounce coefficient 0 < r < 1 if when it is dropped from height h, it bounces back to a height of rh. Suppose that such a ball is dropped from an initial height a and subsequently bounces infinitely may times. Find the total up-and-down distance in all its ...
*Sunday, July 18, 2010 at 3:53pm by fred*

**Physics**

A ball of mass 1.74 kg is dropped from a height y1 = 1.47 m and then bounces back up to a height of y2 = 0.83 m. How much mechanical energy is lost in the bounce? The effect of air resistance has been experimentally found to be negligible in this case, and you can ignore it.
*Saturday, June 2, 2012 at 11:13am by John*

**physics**

After falling from rest at a height of 29.2 m, a 0.488 kg ball rebounds upward, reaching a height of 20.3 m. If the contact between ball and ground lasted 1.68 ms, what average force was exerted on the ball? I'm so confused on where to start. tyvm
*Tuesday, September 22, 2009 at 11:11am by David *

**Physics**

A ball is dropped from an undetermined height and bounces to 5 meters. To what height will it bounce if dropped from a height 1 meter higher?
*Thursday, September 16, 2010 at 11:16pm by Tony*

**PHYSICS**

1....How much force needed to bring a 3200 lb car from rest to a velocity of 44 m/s in 8 sec.? 2....A ball with a mass of 2 kg move to the right with a speed of 2 m/s. It hits a ball of mass 0.50 kg which is at rest. After collision the second ball moves to the right with a ...
*Friday, February 18, 2011 at 8:56am by EM*

**Math**

Im just a little confused on how to answer this question. A ball bounced 64% of the height from which it was dropped. The bounce was 72 cm high. What is the height from which the ball was dropped. I think there has to be an algebraic equation of some sort, but I'm not sure ...
*Sunday, May 15, 2011 at 7:53pm by Erika*

**Physics**

A ball of mass m(1) = 0.250 kg and initial v(1) = 5.00 m/s collides head-on with a ball of mass m(2) = 0.800 kg that is initially at rest. What are the velocities of the balls after the collision if they stick together?
*Friday, January 11, 2013 at 3:49pm by Jackie*

**physics**

Solve this equation for t: (Thrown) Ball 1 height = (Dropped) Ball 2 height 26.7 t - 4.9 t^2 = 13.1 - 4.9 t^2 The acceleration terms, -4.9 t^2, cancel out t = 13.1/26.7 = ___ seconds Interesting result, and one that hints at Einstein's principle of equivalence. In a free-...
*Sunday, January 23, 2011 at 1:13pm by drwls*

**physics**

A softball of mass 0.220 kg that is moving with a speed of 5.5 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. Afterward it is found that the incoming ball has bounced backward with a speed of 3.9 m/s. (a) Calculate the ...
*Sunday, January 10, 2010 at 5:00pm by Anonymous*

**Statistics**

A golf ball is dropped from 15 different heights (in inches) and the height of the bounce is recorded (in inches.) The regression analysis gives the model y-hat = -0.4 + 0.70 (drop height) where y-hat is the predicted bounce height of the golf ball. A golf ball dropped from 71...
*Wednesday, September 18, 2013 at 7:40pm by Jeremy*

**Physics**

Two balls are dropped from rest from the same height. One of the balls is dropped 1.0 s after the other. What distance separates the two balls 2.00 s after the second ball is dropped?
*Sunday, August 28, 2011 at 7:25am by Anonymous*

**Math **

The height(h) of an object that has been dropped or thrown in the air is given by: h(t)=-4.9t^2+vt+h t=time in seconds(s) v=initial velocity in meters per second (m/s) h=initial height in meters(m) A ball is thrown vertically upwardd from the top of the Leaning Tower of Pisa (...
*Wednesday, April 4, 2012 at 4:24pm by NeedHelp*

**Physics**

A 5-kg ball is at rest when it is struck head-on by a 2-kg ball moving along a track at 10 m/s. If the 2-kg ball is at rest after the collision, what is the speed of the 5-kg ball after the collision?
*Monday, March 24, 2014 at 8:05pm by Amanda*

**physics**

An object of mass 5 kg is dropped from a certain height. Just before it strikes the ground it has a kinetic energy of 1250 J. From what height was the object dropped? Ignore air resistance and use g = 10 m/s2.
*Wednesday, August 29, 2012 at 8:08pm by Alexandra*

**physics**

A tennis ball of mass 100g is dropped from a height of 40m.It hits the ground and bounces back to a height of 30m after an impact of 0,01s.Ignore the air resistance .what was the velocity of the ball when it hit the ground ?
*Sunday, February 5, 2012 at 9:04am by kulani*

**physics**

A ball is dropped from rest from the top of a building and strikes the ground with the speed Vf. From ground level, a second ball is thrown straight upward at the same instant that the first ball is dropped. The initial speed of the second ball is Vi=Vf, the same with which ...
*Monday, June 28, 2010 at 6:48pm by Katashia*

**Algebra**

A rubber ball rebounds 3/5 of the height from which it falls. If it is initially dropped from a height of 30 ft. What total vertical distance does it travel before coming to rest?
*Saturday, January 28, 2012 at 10:54pm by PDF*

**phy**

A ball of mass 0.540 kg moving east (+x direction) with a speed of 3.30 m/s collides head-on with a 0.740 kg ball at rest. If the collision is perfectly elastic, what will be the speed and direction of each ball after the collision? a)ball originally at rest m/s b)ball ...
*Thursday, October 7, 2010 at 7:40pm by ami*

**physics**

an elastic ball rebounces 70% when it is dropped from the height. if it is dropped from 60m what is the total distance travelled by the ball
*Saturday, May 26, 2012 at 11:15am by Anonymous*

**Physics**

Will you check my work and help me with the last two problems please? A 4 kg ball has a momentum of 12 kg m/s. What is the ball's speed? -(12 kg/m/s) / 4kg=3m/s A ball is moving at 4 m/s and has a momentum of 48 kg m/s. What is the ball's mass? -(48kg/m/s) / (4m/s) =12 kg A 1-...
*Sunday, October 14, 2007 at 11:07pm by Soly*

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