A parachutist after bailing out falls 80 m without friction. When the parachute opens

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A parachutist after bailing out falls 80 m without friction. When the parachute opens, it decelerates at 2 m/s^2. He reaches the ground with a speed of 20 m/s. At what height, did he bail out?
15
Sep
A parachutist after bailing out falls 80 m without friction. When the parachute opens, it decelerates at 2 m/s^2. He reaches the ground with a speed of 20 m/s. At what height, did he bail out? A parachutist after bailing out falls 80 m without friction. When the parachute opens did he bail out? it [...]
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