1.

A parachutist after bailing out falls 50 m ,whitout friction. When the parachute opens he decelerates downwards at 2ms ^(-2). He reaches the ground with a speed of3ms ^(-1). How long was the parachustintist in air ? At wht height did he ball out ?

Answer»


ANSWER :17. 3 s 292 . 7 m


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