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A bullet of mass 10g moving horizontally witha velocity of 400 ms-1 strikes a wooden blockof mass 2 kg which is suspended by a lightinextensible string of length 5 m. As a result,the centre of gravity of the block is found torise a vertical distance of 10 cm. The speed ofthe bullet after it emerges out horizontally fromthe block will be:45.120 ms-1(3) 100 ms"1(2) 160 ms-1(4) 80 ms-1 |
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Answer» The correct answer is option no. (1) 120m/s |
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