Question

5- A stone released from the top of tower of height 19.6m
calculate its final velocity just before touching the [2]
ground
Stato nowton's third law of motion Fxplain why a gun​

Answer 1

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Initial Velocity u=0

Final velocity v=?

Height, s=19.6m

By third equation of motion

v2=u2+2gs

v2=0+2×9.8×19.6

v2=384.16⇒v=19.6m/s

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