A bullet of mass 0.1kg strikes a wooden planck with a velocity of 120ms^-1 and emerges out in 0.01s with velocity of 40ms^-1.Calculate the work done by bullet and the thickness of plank.
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A bullet of mass 0.1kg strikes a wooden planck with a velocity of 120ms^-1 and emerges out in 0.01s with velocity of 40ms^-1.Calculate the work done by bullet and the thickness of plank.
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Answer: work done by the bullet =-1280J
Explanation given in attachment.
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