A 40-kg girl, standing at rest on the ice, gives a 60-kg boy, who is also standing at rest on the ice, a shove. After a shove, the boy is moving backwards at 2.0 m/s. Ignore friction. The girl's speed is.

Q: 2. A 6.2 kg object heading north at 3.0 m/s collides with an 8.0 kg object heading west at 3.5 m/s.…

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Q: A 0.060-kg tennis ball, moving with a speed of 4.6 m/s, has a head-on collision with a 0.10-kg ball…

A: in all collision momentum remains conserved  momentum before collision = momentum after collision…

Q: A 60-kg girl holding a 4-kg brick is sitting down. Then she throws (Hint: this is the collision!…

A: Given data: Mass of girl (m1) = 60 kg Mass of brick (m2) = 4 kg Initially both girl and brick are at…

Q: A 7.25 kg bowling ball moving at 4.00 m/s makes an elastic head on collision with a 2.25 kg bowling…

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Q: A 2 kg car moving towards the right at 4 m/s collides head on with an 8 kg car moving towards the…

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Q: olve the following prot A 3-kg fish moving at 0.5 m/s swallows a 0.5-kg fish at rest. What is the…

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Q: A 30-kg girl who is running at 3 m/s jumps on a stationary 10-kg sled on a frozen lake. How fast…

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Q: A 120 kg cart moving at 35 m/s collides head-on with an approaching 80 kg cart moving at 20 m/s (in…

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Q: A 54 kg boy On roller skates moves with a speed of 4 m/s. He runs into a 46 kg girl in skates,…

A: Given : m1 = 54 kgv1 = 4 m/sm2 = 46 kgv2 = 0 m/s (I presume she's not moving because there's no…

Q: An 8 kg bowling ball, rolling at 1.2 meters per second, elastically strikes a .3 kg pool ball at…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: FERDIE HAS A MASS OF 45kg AND IS RUNNING AT 25km/h. LENNY HAS A MASS OF 55kg AND IS RUNNING AT…

A: Given: FERDIE HAS A MASS OF 45kg AND IS RUNNING AT 25km/h. LENNY HAS A MASS OF 55kg AND IS RUNNING…

Q: A 90.0-kg hockey player moving at 5.0 m/s collides head-on with a 110-kg hockey player moving at 3.0…

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Q: What is the change in momentum of a 25 g baseball originally travelling at 30 m/s forward, if after…

A: Given:Mass of ball, m=25 gInitial velocity, u=30 m/sFinal velocity, v=-75 m/s   To determine change…

Q: A 110 kg linebacker running at 2.0 m/s and an 82 kg quarterback running at 3.0 m/s have a head-on…

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Q: A 0.0450-kg golf ball initially at rest is given a speed of 25.0 m/s when a club strikes. If the…

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Q: Karell throws his 0.20-kg football in the living room and knocks over his mother's 0.80-kg antique…

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Q: A 110-kg tackler moving at 2.5m/s meets head-on (and holds on to) an 82-kg halfback moving at…

A: Mass of the tackler 1 m1=110 kg Velocity of the tackler before collision vt1=2.5 m/s Therefore the…

Q: Betty (mass 35 kg) stands on an ice rink as bubbles ( her puppy mass 8.6 kg) runs towards her and…

A: S

Q: A 40-kg football player leaps through the air to collide with and tackle a 60-kg player heading…

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Q: 4. A 120 kg tackler moving at 2.5 m/s meets head-on (and tackles) a 90 kg halfback moving at 5 m/s.…

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Q: A 2-kg object, A, moving at a speed of 8 m/s strikes a 4-kg ball, B, moving at a speed of 20 m/s. If…

A: Mass of Object A: mA = 2 kg Initial speed of object A: uA = 8 m/s Mass of Object B: mB = 4 kg…

Q: A 5.0 kg rifle recoils with a speed of 8.0 m/s when a bullet with a mass of 64 g is fired. The…

A: Assume the coordinate axis in such a way that positive x-axis is towards right and negative x-axis…

Q: What is the velocity of a 1-kg cart, initially at rest, after a head-on elastic collision with a…

A: The given values are, m1=1 kgu1=0m2=2 kgu2=4 m/s

Q: A 5.0-kg hot rod car moving at 2.0m/s slams into a 4.0-kg hot rod car at rest. The speed of the two…

A: Given data :- mass m1 = 5 kg  and v1 = 2 m/smass m2 = 4 kg  and v2 = 0 m/s

Q: What is the momentum of a 50-kg carton that slides at 4 m/s across an icy surface?

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Q: a 3 kg block of wood stops a 5g bullet. Immediately after collision, the speed of the bullet-wood…

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Q: A ball of mass 3.8 kg moving east with a speed of 4.5 m/s collides head-on with a 7.6-kg ball at…

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Q: What is the change in momentum that occurs when a 1.0 kg ball traveling at 3.0 m/s strikes a wall…

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Q: Suppose a 800-kg car moving at 20 m/s crashes into the back of and sticks to a 1200-kg car moving at…

A: Before Collision                                   After Collision ma=800 kg    va=20 m/s…

Q: A 5000-kg freight car moving at 2 m/s collides with a 10,000-kg freight car at rest. They couple…

A: Given data: The mass of the first freight car is, m1= 5000 kg The initial speed of the first freight…

Q: A 5-kg object moving with a velocity of 8 m/s in the positive x direction strikes and sticks to a…

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Q: The impulse of the force exerted by wooden target in stopping an arrow with a speed of 400 m/s is -2…

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Q: A 5 kg rifle recoils with a speed of 8 m/s when a bullet with a mass of 64 g is fired. The muzzle…

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Q: A 50-kg skater traveling at 5m/s overtakes a 60-kg skater traveling at 2.5m/s in the same direction…

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Q: a 40-kg skater travelling at 4m/s overtakes a 60-kg skater travelling at 2m/s in the same direction…

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Q: A 12 gram rubber bullet travels at a velocity of 150 m/s hits a stationary concrete block of mass…

A: Here given a rubber bullet of mass 12 gm.Again it travels a velocity 150 m/s. The mass of the…

Q: If a 5.6kg object reaches a momentum of 42kg m/s, the ball is moving at a rate of

A: This question is from momentum exercise. Momentum of a object is product of mass and velocity. Refer…

Q: Karell throws his 0.20-kg football in the living room and knocks over his mother's 0.80-kg antique…

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Q: A 0.111 kg hockey puck moving at 55 m/s is caught by a 80. kg goalie at rest. With what speed does…

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Q: Two football players with mass 75 kg and 100 kg run directly toward each other with speeds of 6 m/s…

A: The total momentum of the system must be conserved. The initial momenta of the two footballers in…

Q: A .06 kg tennis ball hits a wall with a velocity of 30 m/s and rebounds at about the same speed.…

A: According to the change in momentum of the ball from before the collision to after.…

Q: a cheetah jumps straight up in the air to catch a bird (with a mass of 100g )at the peak of its…

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Q: A 0.20-kg model railroad car moving with a speed of 0.20 m/s is struck from behind by an 0.42-kg…

A: According to the conservation of momentum, pi=pfm1v1,i+m2v2,i=m1+m2vfvf=m1v1,i+m2v2,im1+m2

Q: An 80-kg cart moving at 70 m/s collides head-on with an approaching 120-kg cart moving at 40 m/s (in…

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