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Figure shows a man of mass 50kg standing...

Figure shows a man of mass 50kg standing on a light weighing machine kept in a box of mass 30kg. The box is hanging from a pulley fixed to the ceiling through a light rope, the other end of which is held by the man himself. If the man manages to keep the box at rest, the weight shown by the machine is.

A

10N

B

100N

C

800N

D

200N

Text Solution

Verified by Experts

The correct Answer is:
B
`T=N+30g` (i)
`T+N=50g` (ii)
:. `N=10g=100N` .
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