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a man pulls a bucket full of water from h metre well. If the mass of rope is m and mass of bucket full of water is M ,then the work done by the man is 1) (M/2+m)gh 2) (M+m)/2 3) (M+m/2)gh 4) (M+m)gh |
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Answer» a man pulls a bucket full of water from h metre well. If the mass of rope is m and mass of bucket full of water is M ,then the work done by the man is 1) (M/2+m)gh 2) (M+m)/2 3) (M+m/2)gh 4) (M+m)gh |
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