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Danvi
Questions (1)
the horizontal range of a projectile is 4a. It passes a tower that height a/2 when the horizontal range was a. What is the
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Yes
The h should be measure from the centre of gravity. so h is half than the total distance.
energy = mgh = 200*4 = 800J
The total energy= mgh+ 1/2mv^2 = (60*10*10)+ (60*225)/2 = 6000 + 6750 = 12750 J
