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CBSE Class 11-science Answered

Calculate the work done in raising a stone of mass 5 kg and specific gravity 3,lying at the bed of a lake through a height of5 km .

Asked by manoj19772008 | 02 Feb, 2019, 10:44: AM
Expert Answer
If the depth of the lake very less compare to height of 5 km. Then the work done would be equal to m×g×h
= 5× 9.8× 5000= 245000 Joules
Answered by Ankit K | 02 Feb, 2019, 12:41: PM

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