Answer to Question #312995 in Electrical Engineering for Prince

Question

a boy wishes to throw a ball over a flat roofed school that stands 12m wide and 7.5m high on level ground assuming that the ball will leave his hand at a height of 1.5m above the ground. Determine how far from the wall he should stand in order to make the ball clear the roof with the least effort that is with minimum initial velocity

Answer 1

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