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CBSE Class 10 Answered

pls answer
Asked by | 07 Jul, 2009, 09:48: PM
answered-by-expert Expert Answer

m = 20 kg; h = 50 cm; g = 10 m/s2; u = 0;

using v2 = u2 + 2 g h

v2 = 0 + 2 x 10 x 0.5

v = 3.16 m/s

Change in momentum = momentum transferred = m v - m x 0 = 20 x 3.16 = 63.2 kg m / s

 

Answered by | 08 Jul, 2009, 11:27: AM

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