High-speed stroboscopic photographs show that the head of a golf club of mass 230g is traveling at 56.1m/s just before it strikes a 44.6g golf ball at rest on a tee. After the collision, the club head travels (in the same direction) at 41.4m/s. Calculate the speed of the golf ball just after impact

Answer 1

M1*V1 + M2*V2 = M1*V3 + M2*V4.
0.230*56.1 + M2*0 = 0.230*41.4 + 0.0446*V4.
V4 = ?.