Answer:
Step-by-step explanation:
1 foot is 0.3048 meters, so ...
70 m/s = (70 m/s)×(1 ft)/(0.3048 m) ≈ 229.659 ft/s
At that speed, the distance covered in 20 seconds is ...
(20 s)(229.659 ft/s) = 4,593.18 ft
The parachutist will fall 4593 feet during 20 seconds of free fall at 229.7 ft per second.
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Final answers are rounded. Intermediate values are not.