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A piece of dtone is thrown vertically upwards. it reaches a maximum height in 3 seconds. if the accleration of stone is 9.8m/sec directed towards the

ground.calculate initial velocity?


Apply v= u+at along vertical direction.
         ⇒0= u+(-g)t
1 4 1

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Initial velocity U
V = U + a t
0 = U - 9.8 m/sec² * 3 sec

U = 29.4 m/sec
Direction of velocity is vertically upwards.

0 0 0
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