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    VarcityCollageG Posts: 1, Reputation: 1
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    Apr 11, 2008, 12:13 PM
    Average force exerted
    I can't work this out pleas help

    A rubber ball of mass 60g strikes a wall at 90 degrees at 40m.s-1 and bounces back at 33m.s-1
    Calculate the average force exerted by the ball on the wall.

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