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A lift is moving upwards as shown in fig...

A lift is moving upwards as shown in figure in figure A block of mass m s placed on a wedge inside the left and it is statioary with to lift
Net force acting on m is

A

` f cos theta =N sintheta`

B

`f sintheta + N cos theta=mg`

C

`f-mg siontheta =masintheta`

D

`N-mg cos theta =ma cos theta`

Text Solution

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The correct Answer is:
b
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