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Posted by on Monday, January 14, 2008 at 3:20pm.

a cue stick strikes a stationary pool ball, exerting an average forece of 50 N over a time of 7 milliseconds. If the ball has mass .1kg, what speed does it have just after impact?

  • physics - , Monday, January 14, 2008 at 7:54pm

    change in momentum = force* time
    which is sometimes called "impulse"
    m (Vfinal -Vinitial) = F * t
    if m is constant and F is constant
    here Vinitial is given as zero and you know everything but Vfinal so you can solve for Vfinal

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