(a) What is the momentum in kg · m/s of a garbage truck that is 1.00 x 104 kg and is moving at 28.0 m/s? (Enter a number.) kg • m/s (b) At what speed in m/s would an 8.00 kg trash can have the same momentum as the truck? (Enter a number.) m/s

A basketball with a mass of 0.60 kg is dropped from rest. Just before striking the floor, the ball has a momentum whose magnitude is 3.1 kg m/s. At what height was the ball dropped?

A ball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. If the ball hits the floor with a speed of 2.80 m/s and rebounds with a speed of 1.60 m/s, determine the following. (a) magnitude of the change in the ball's momentum in kg • m/s (Let up be in the positive direction.) kg • m/s (b) change in the magnitude of the ball's momentum in kg • m/s (Let negative values indicate a decrease in magnitude.) kg • m/s (c) Which of the two quantities calculated in parts (a) and (b) is more directly related to the net force acting on the ball during its collision with the floor? O the magnitude of the change in the ball's momentum O the change in the magnitude of the ball's momentum Neither are related to the net force acting on the ball. O They both are equally related to the net force acting on the ball.

"The fastest throw of a rugby ball was 48.0 mph (77.25 km/h) and was achieved by Joe Simpson (UK), a professional rugby player for London Wasps, in an event organized [...] in 2011" (source: Guinness World Records) At what speed must a 150-kg rugby player be moving to have the same momentum as the 450 g rugby ball recorded in the Guinness World Records?Answer: _____ Units:______

A sprinter with a mass of 79 kg reaches a speed of 8 m/s during a race. Find the sprinter's linear momentum (in kg • m/s). (Enter the magnitude.) kg • m/s

A 100-kg particle moves with an initial velocity of (4.0i, - 6.0j) m/s. If its velocity changes to v = (3.0i – 8.0j) m/s by the action of a force, determine The net work done on the particle. What principle would you use to solve this problem? The impulse on the particle. True or False: Impulse is equal to the rate of change of momentum.

A plasticine ball with a momentum of 4.0 kg•m/s [F] hits a wall and stops. What is the change in the ball's momentum? O 4.0 kg-m/s [B] 4.0 kg•m/s [F] 0.0 kg-m/s 8.0 kg-m/s [B] 8.0 kg-m/s [F]

A 1980 kg truck traveling north at 37 km/h turns east and accelerates to 53 km/h. (a) What is the change in the truck's kinetic energy? (b) What is the magnitude of the change in its momentum?

) 1. A system consists of a 2-kg object moving to the left at 6.0 m/s, and a 3.0 kg object moving to the right at 4.0 m/s. Which of the following statements in true? The total kinetic energy of the system is nonzero, and the total momentum of the system is zero The total kinetic energy of the system is zero, and the total momentum of the system is nonzero. The total momentum and total kinetic energy of the system are both zero The total momentum and total kinetic energy of the system are both nonzero

A guy running drops from a tower to the ground.  The height of the tower is 8 m.  (a) How fast is the person going when he hits the ground (assuming no air resistance)?  (b)  If the person's mass is 65 kg, what is his momentum when he hits the ground? (c)  If he lands and bends his knees, he comes to rest in 0.2 sec.  What force is being exerted on his legs to stop him?