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OpenStudy (anonymous):
A pole-vaulting student (mass 62 kg) clears a bar and then falls from rest from a height of 4.50 m onto a foam rubber pad below. What is her momentum at the moment of impact with the pad below?
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OpenStudy (anonymous):
h=gtt/2 free fall u=0 t1=sq rt 2h/g v=u+at v=gt1 here momentum=mv
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