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A bullet (m_(1) = 25 g) is fired with a velocity 400 ms^(-1) get embedded into a bag of sand (m_(2) = 4.9 kg) suspended by a rope. The velocity of the bag is nearly : |
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Answer» `0.2 ms^(-1)` `(25)/(100)xx400 = (4.9 +0.025) upsilon` `upsilon=(10)/(4.925) = 2.030 ~~ 2 mg^(-1)` (d) is the choice. |
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