Question

a piece of stone is thrown vertically upwards. It reaches is the maximum height in 3 seconds. If the acceleration of stone be 9.8 M per second square directed towards the ground, calculate the initial velocity of the stone with which it is thrown upwards.

Answer 1

HEYA DEAR!!!!!!!

HERE IS THE ANSWER TO YOUR QUESTION.......

At the max height the final velocity of stone becomes 0.

t=3 and a=-9.8

V=u+at

Substituting the values,

0=u-gt

U=gt

U=9.8×3

U=29.4m/s

HOPE IT HELPS.....

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Answer 2

Here's your answer

Hope it is helpful