A 6.64 kg object is initially traveling in the positive x-direction at 9.44 m/s. It collides with a 7.85 kg object that is initially at rest. The two objects are in contact for just 14.7 ms. After the collision the 7.85 kg object is observed to move in the positive x-direction at 7.95 m/s. What is the average net force that acts on the 7.85 kg object during the 14.7 ms?

A space probe is traveling in outer space with a momentum that has a magnitude of 3.04 x 107 kg·m/s. A retrorocket is fired to slow down the probe. It applies a force to the probe that has a magnitude of 1.19 x 106 N and a direction opposite to the probe's motion. It fires for a period of 8.86 s. Determine the momentum of the probe after the retrorocket ceases to fire.

Ball A, whose mass is 12.0 kg, is moving with a velocity of 37.0 m when it suddenly hits another ball at rest, Ball B. After the collision, Ball A continues to move with a velocity of 19.0 m/s while Ball B moves with a velocity of 4.00 m/s. What is the mass of Ball B?

Blythe and Geoff are ice skating together. Blythe has a mass of 53.0 kg, and Geoff has a mass of 82.0 kg. Blythe pushes Geoff in the chest when both are at rest, causing Geoff to move away at a speed of 5.00 m/s. What is Blythe's speed UB after she pushes Geoff? UB = In what direction does Blythe move? in the same direction as Geoff in the opposite direction of Geoff m/s

A ball of mass 2.00-kg is traveling in the positive x-direction at 10.0 m/s and obliquely collides with a 3.00-kg ball that was initially at rest. After the collision, the 2.00-kg ball is traveling at 30.0° above the positive x-axis, while the 3.00-kg ball has a speed of 4.00 m/s. Determine the direction the 3.00-kg ball is moving relative to the positive x direction, and the speed of the 2.00-kg ball.

A truck with a mass of 1320 kg and moving with a speed of 12.0 m/s rear-ends a 703 kg car stopped at an intersection. The collision is approximately elastic since the car is in neutral, the brakes are off, the metal bumpers line up well and do not get damaged. Find the speed of both vehicles after the collision in meters per second. V car m/s %3D Vtruck m/s Additional Materials

A 56 g base ball is travelling at 40 m/s.  When it hits with the baseball bat, you exert an average force of 78 N, sending the ball back at 30 m/s. How long was the baseball in contact with the bat? Please answer in m/s

A professional golfer swings a golf club, striking a golf ball that has a mass of 55.0 g. The club is in contact with the ball for only 0.00310 s. After the collision, the ball leaves the club at a speed of 32.0 m/s. What is the magnitude of the average force (in N) exerted on the ball by the club?

A 0.508 kg ball, initially moving with a speed of 3.3 m/s bounces off a wall and then moves with a speed magnitude half of its original directed in the opposite direction. If the ball is in contact with the wall for 5.8 m/s, what is the magnitude of the average force that the wall exerts on the ball? A. 147.32 N B. 433.55 N C. None of the above

Problem 2: A 10 grams bullet moving at 800 m/sec hits 1000 grams block of wood and stays inside the block. The block had been originally at rest and is free to move. Immediately after the collision the block-bullet system starts to move up a ramp that is incline at 30 degrees. The coefficient of kinetic friction between the block and the ramp surface is 0.30. How far up the ramp will the block and bullet system move after the collision before coming to rest?