nicolliasimao
Answered

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A ball is thrown vertically upward from the ground at a speed of 44 m/s. How long in s does it take to return to the ground?

Sagot :

indrawboy

vf=vi-gt (at peak vf = 0)

vi=gt

44=9.8t

t=4.49 s

time return = time upward = 4.49 s

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