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A bungee jumper (m = 64.00 kg) tied to a 48.00 m cord, leaps off a...

A bungee jumper (m = 64.00 kg) tied to a 48.00 m cord, leaps off a 78.00 m tall bridge. He falls to 9.00 m above the water before the bungee cord pulls him back up. What size impulse is exerted on the bungee jumper while the cord stretches?
(in kg*m/s)

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