A body of mass m kg is lifted by a man to a height of one metre in 30 – McqOptions

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1.	A body of mass m kg is lifted by a man to a height of one metre in 30 sec. Another man lifts the same mass to the same height in 60 sec. The work done by them are in the ratio [MP PMT 1993]
A.	\[1:2\]
B.	1 : 1
C.	2 : 1
D.	4 : 1
Answer» C. 2 : 1

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