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A 59 kg pole-vaulter falls from rest from a height of 5.5 m onto a foam rubber pad. The pole-vaulter comes to rest 0.39 s after landing on the pad.

a. Calculate the athlete's velocity just before reaching the pad.

b. Calculate the constant force exerted on the pole-vaulter due to the

  • Physics -

    a. mgh=1/2 mv^2 or v= sqrt2gh

    b. force*time= mass*v
    solve for force.

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