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High-speed stroboscopic photographs show that the head of a 208 g golf club is trav- eling at 27.9 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 20.1 m/s.
Find the speed of the golf ball immediately after impact.
Answer in units of m/s

  • physics -

    Mv₁=mu+Mv₂
    u = M(v₁-v₂)/m =
    = 208(27.9-20.1)/45.9 =
    =35.3 m/s

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