Question

High-speed stroboscopic photographs show that the head of a 170-g golf club is traveling at 50 m/s just before it strikes a 46-g golf ball at rest on a tee. After the collision, the club head travels (in the same direction) at 36 m/s. Find the speed of the golf ball just after impact.

_____m/s

Answer 1

Given that the mass of golf club is m1 170 g 0.17 kg initial speed of golf club is u- 50 m/s Mass of golf ball is m2 46 g 0.046 kg Initial speed of golf club is u2 0 m/s Final speed of club is v1 36 m/s From conservation of momentum total in itial momentum total final momentum (0.17 kg) (50 m/s) +0 (0.170kg)(36 m/s)+ (0.046 kg)v2 (0.046kg) v2 (0.170 kg)(50 m/s) - (0.170kg)(36 m/s) the final speed of golf is v2 51.74 m/s