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Physics

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A rock is thrown horizontally off of a cliff. It starts with a velocity of 4.2 m/s and the cliff is 68.2 m high.

How far out from the bottom of the cliff does the rock fall? 

57m


59m 


63m 


45.8m 

  • Physics - ,

    time to fall from height of clift:

    68.2=1/2 g t^2

    t= sqrt (68.2/4.9)=3.7 sec

    distance horizontal= time*initial velocity

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