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Constant force exerted

A 79 kg pole-vaulter falls from rest from a height of 7.2 m onto a foam-rubber pad. The pole-vaulter comes to rest 0.48 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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