Work done in raising a box depends on-How fast it is raised-The strength of the man-The height by which it is raised-None of the above

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Factors Affecting Work Done

Work done in ...

Question

Work done in raising a box depends on:

How fast it is raised

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The strength of the man

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The height by which it is raised

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None of the above

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A man raises a box of mass 50 kg to a height of 2 m in 20 s, while another man raises the same box to the same height in 50 s.

(a) Compare:(i) the work done,and (ii) the power developed by them.

(b) Calculate:(i) the work done,and (ii) the power developed by each man.Take g=10 N $k g^{- 1}$ .

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Does the work done depend upon how fast an object is raised? Explain.

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