Question

1. A rubber ball with a mass of 1.35 kg is stuck in a tree. To knock it out, you throw a golf ball with a mass of 0.0450 kg at it. The golf ball hits the rubber ball with a speed of 20.0 m/s and bounces off with a speed of 10.0 m/s. The golf ball is moving in the same direction horizontally after the collision as it was before it hit the rubber ball. When the golf ball hits the rubber ball, it’s velocity makes an angle of 35.0 ◦ with the vertical. After it bounces off, the golf ball is traveling 40.0 ◦ below the horizontal.

(a) In what direction does the rubber ball travel after the collision? (b) What fraction of the initial kinetic energy was lost during the collision? (c) If the two balls are in contact for 0.120 s, what is the average acceleration of the golf ball during the collision?

Answer 1