How do you calculate ending height for a bungee

The bungee jumper jumps off a tall structure such as a bridge or crane and then falls vertically downward until the elastic bungee cord slows his descent to a stop, before pulling him back up. This fixed control volume is cleverly chosen in order to more easily determine the acceleration a of the bungee jumper, as he falls.

It’s b. mass i searched it up

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