4. In an elastic head-on collision, a 0.60 kg cart moving at 5.0 m/s [E] collides with a 0.80 kg cart moving at 2.0 m/s [W]. The collision is cushioned by a spring (k = 1,200 N/m). i. Determine the velocity of each cart after the collision. ii. Determine the maximum compression of the spring.

b. A 400 kg object moving at a speed of 5 m/s to the right collides with a 600 moving at 2 m/s to the left. After the collision, the 600 kg object moves to the right at a speed of 3 m/s. Determine, i. the velocity of the 400 kg object after the collision ii. The loss in KE after collision, if any.

The momentum of an isolated system is conserved Select one: a. only in inelastic collisions. b. only in elastic collisions. C. in both elastic and inelastic collisions.

On a level, frictionless air track, a 300-g puck traveling at 20.0 cm/s to the right undergoes a perfectly elastic head-on collision with a 500-g puck that is traveling to the left, directly toward the first puck, at 10 cm/s. What is the speed of the 500-g puck after the collision? a. 17.5 cm/s b. 22.5 cm/s c. 12.5 cm/s d. 20.0 cm/s e. 15.0 cm/s

In an inelastic collision, as compared to an elastic collision, what is to be expected?     A.Momentum is conserved and energy is not conserved. B.Momentum is conserved and energy is conserved. C.Momentum is not conserved and energy is conserved. D.Momentum is not conserved and energy is not conserved.

1. A steel ball of mass 0.5 kg is fastened to a cord 70 cm long and fixed at the far end, is released when the cord is horizontal. At the bottom of its path, the ball strikes a 2.5 kg steel block initially at rest on a horizontal surface. The collision is elastic. Find a) the speed of the ball and the speed of the block, just after the collision. b) If the block has a coefficient of kinetic friction with the horizontal surface of 0.30, how far does the block slide before coming to rest? Ignore the effect of the frictional force for the duration of the collision. [-2.49 m/s, 1.27 m/s; 0.27 m]

5. A truck and a small car are both going 10 mph when they collide head on. a. Does the truck or the car experiences the largest force during the collision? Why? b. Which experiences the largest impulse during the collision? Why? c. Which experiences the largest change in momentum during the collision? Why? d. Which will experience the largest change in velocity? Why?

Q14. Two cars of equal mass, one travelling north, the other east, collide at the same speed at right angles to each other. Assuming the collision is perfectly inelastic, what is the velocity following the collision? a. Ö2 times initial speed, at 45° east of south b. 1//2 times the initial speed, at 45° east of north Ос. twice the initial speed, at 45° east of south d. Ö2 times initial speed, at 45° east of north

A truck (m=5000 kg) initially moving at 5 m/s slams into the back of a car (m=1,000 kg) that is sitting at an intersection. The bumpers lock, and the two vehicles move off together. Which vehicle experiences the larger impulse during in the collision? A. The truck. B. The car. C. The impulses are the same. v-5 m/s 00-00-0 m=5,000 kg m=1,000 kg

11. Each croquet ball in a set has a mass of 0.53kg. The green ball, traveling at 11.9 m/s, strikes the blue ball, which is at rest. Assuming that the balls slide on a frictionless surface and all collisions are head-on, find the final speed of the blue ball if the green ball continues moving after the collision at 2.5 m/s in the same direction.