A stone is released from the top of a tower of height 7 m. Calculate its final velocity just before touching the ground.
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Answer:
Step-by-step explanation:
Initial Velocity u=0
Fianl velocity v=?
Height, s=19.6m
By third equation of motion v 2 =u 2 +2gs v 2
=0+2×9.8×19.6 v 2
=384.16
⇒v=19.6m/s
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