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A man of mass 60 kg records his wt. on a...

A man of mass 60 kg records his wt. on a weighing machine placed inside a lift. The ratio of wts. Of man recorded when lift is ascending up with a uniform speed of 2 m/s to when it is descending down with a uniform speed of 4 m/s will be

A

0.5

B

l

C

2

D

none of the above.

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