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July 29, 2015

Homework Help: Physics

Posted by Becky on Monday, March 21, 2011 at 10:31pm.

A 57.8 kg pole-vaulter falls from rest from a height of 5.4 m onto a foam-rubber pad. The pole-vaulter comes to rest 0.25 s after landing on the pad.

(a) Calculate the athlete's velocity just before reaching the pad.
______ m/s downward

(b) Calculate the constant force exerted on the pole-vaulter due to the collision.
_________N upward

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