conserve momentum
0.198 * 24.4 = 0.198 * 17.3 + 0.0459 v
High-speed stroboscopic photographs show
that the head of a 198 g golf club is traveling at 24.4 m/s just before it strikes a 45.9 g
golf ball at rest on a tee. After the collision,
the club head travels (in the same direction)
at 17.3 m/s.
Find the speed of the golf ball immediately
after impact.
Answer in units of m/s
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