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October 22, 2014

Homework Help: Science ( physics )

Posted by Margie on Tuesday, August 1, 2006 at 5:40am.

A balloon is rising with a velocity of 4.9 m/sec releases an object from height of 96 m. a) How long after its release will the object reach the ground? b) what is the velocity of the object as it hits the ground?


The object has in intial vertical velocity, at an initial positive height. You need to find time, and final velocity.


hfinal=hinitial+ vo*t - 1/2 g t^2
solve for t

then
vf= vo - gt.

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