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Acceleration in 2D

ntA boy of ma...

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ntA boy of mass M , standing at a height h tgrows a ball of mass m vertically down with a speed u.Assuming no gravity ,the distance of man above the ground when ball reaches the floor isn nt(1) hn nt(2) ((M-m)h)/Mn nt(3)((m-M)h)/Mn nt(4)((m+M)h)/Mn

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