physics
posted by Lacey .
A person jumps from the roof of a house 3.6 m high. When he strikes the ground below, he bends his knees so that his torso decelerates over an approximate distance of 0.70 {\rm m}. If the mass of his torso (excluding legs) is 46 kg. Find the average force exerted on his torso by his legs during deceleration.
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