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03/11/2021 12:15 pm
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A piece of stone is thrown vertically upwards. It reaches the maximum height in 3 seconds. If the acceleration of the stone is 9.8 m/s2 directed towards the ground, calculate the initial velocity of the stone with which it is thrown upwards.
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03/11/2021 12:18 pm
Initial velocity of the stone, u = ?
Final velocity of stone, v = 0
Acceleration due to gravity, g = -9.8 m/s2
Time, t = 3 sec
Using relation, v = u + gt
0 = u - 9.8 x 3
u = 29.4 m/s