A ball is thrown vertically downward with a velocity of 20m/s from the top of a tower .it hito the graound after some time with a velocity of 80m/s.The height of the tower is
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Answer:
S=height of tower, g=10 m/s^2
v^2-u^2= 2 gS
(80)^2-(20)^2 = 2*10*S
6400-400 = 20S
6000/20= S
S=300 m
Explanation:
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