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A stone is released from the top of tower of height 19.6m. Calculate it's final velocity. Just before touching the ground.plz don't spam.... |
Answer» Given:-•Height of the TOWER(h)=19.6m •Acceleration due to gravity(g)=9.8m/s² •Initial velocity(u)=0 (as the stone was at REST INITIALLY) To find:-•Final velocity or velocity of the stone before touching the GROUND(v) Solution:-By using the 3rd equation of motion,when u=0,we get----- =>v²=2gh =>v²=2×9.8×19.6 =>v²=384.16 =>v=19.6m/s Thus,velocity of the stone before touching the ground is 19.6m/s. |
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