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Q.

In the arrangement shown, neglect the mass of the ropes and the pulley. What must be the value of m to keep the system in equilibrium ? (Neglect friction every where)

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a

M

b

2 M

c

M4

d

M2

answer is C.

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Detailed Solution

Question Image

From the given fig

T=Mgsin30→(1)

And T=mg→(2)

∴mg=Mgsin30°

m=M2

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