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If a ball projected vertically upward 8 meters then find the work done by gravity |
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Answer»
The equation is given as v 2 −u 2 =2as. where, v = FINAL velocity, u = initial velocity, a = acceleration due to gravity, 10m/s 2 , s = h = HEIGHT traveled. Therefore, we can find u with above info. In this CASE, v = 0 at the top of the path. 0−u 2 =2×10×5=10m/s. Hence, the initial velocity of the ball was 10 m/s. |
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