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Find linear momentum when a stone of mass 50kg is thrown from a height 10m
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PE = KE, Mgh = 0.5M*V^2, g*h = 0.5V^2, V^2 = 2*g*h = 19.6*10 = 196, V = 14m/s.
Momentum = M*V = 50 * 14 = 700 kg-m/s.
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