a 4-kilogram ball moving at 8 m/sec to the right collides with a 1-kilogram ball at rest. after the collision, the 4-kilogram ball moves at 4.8 m/sec to the right. what is the velocity of the 1-kilogram ball?

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)

What happens when a rubber rod is rubbed with a piece of fur?

Distinguish between linear momentum and angular momentum