Asked by pavatharani

a body is thrown vertically upward return to the earth in 3sec.
(a)what was the initial velocity of the body
(b)what height did the body reach?
neglect the resistance of air.

Answers

Answered by bobpursley
a. hf=ho+vi*t-4.8t^2

hf,ho are zero, solve for vi

b. same equation,t=1.5
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