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Question

If rope of lift breaks suddenly, the tension exerted by the surface of lift (a=acceleration of lift)

A
mg
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B
m(g+a)
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C
m(ga)
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D
0
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Solution

The correct option is D 0
The tension equation from the force balance
T=m(ga)
If rope of lift breaks suddenly, acceleration becomes equal to g
so that tension, T=m(gg)=0
Option D is a correct option.

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