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10 July, 05:19

A 0.40kg soccer ball approaches a player horizontally with a velocity of 18m/s north. the player strikes the ball and causes it to move in the opposite direction with a velocity of 22m/s. what impulse was delivered to the ball by the player?

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  1. 10 July, 05:53
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    Impulse = Ft = (m) (delta v)

    delta v = change in velocity = velocity final - velocity initial.

    = - 22m/s - + 18m/s = - 40m/s.

    mdeltav = (0.40kg) (-40m/s) = - 16kgm/s or - 16Ns.
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