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110kg person drops 5.3kg ball from 10.9m. find average force exerted on ball by the ground during impact. (ball doesn't bounce and end up 3.1cm deep into the ground. (acceleration due to gravity 9.82m/s^2)
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Find the velocity when it touches the ground and the deaceleration that will make the ground will be this velocity divided by those 3.1cm. Then F=m*a
\[v=\sqrt{2*9.8*10,9}\]
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