Q. High-speed stroboscopic photographs show that the head of a 280-g golf club is travelling at 58 m/s just before it strikes a 46-g golf ball at rest on a tee. After the impact, the club head travels (in the similar direction) at 52-m/s. determine the speed of the golf ball just after impact.
Q. A steel ball rolls with steady velocity across a tabletop 0.950 m high. It rolls off and hits the ground 0.352 m from the edge of the table. How fast was the ball rolling?