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2 years ago

14

A 60kg man jumps off a 30 foot building. Assuming he falls from rest and there is negligible air resistance, how long will it ta

ke him to reach the ground?

1 answer:

Dmitriy789 [7]2 years ago

5 0

Answer:

1.37 seconds before.... splat !

Explanation:

y = y0 + v0 t + 1/2 a t^2 y0 = 30 y = 0

v0 = 0 ( from rest)

a = - 32.2 ft/s^2

0 = 30 - 1/2 * 32.2 * t^2

t=1.366 seconds <u> Note that mass is irrelevant.</u>

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