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Questions  

The pulley and strings shown in the figure are smooth and of negligible mass. For the system to remain in equilibrium, the angle 'θ' should be

a
b
30°
c
45°
d
60°

detailed solution

Correct option is C

Draw FBD of m is T=mgDraw FBD of 2m is 2Tcos⁡θ=2mg

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A uniform sphere of weight W and radius 3 m is being held by a string of length 2m.attached to a frictionless wall as shown in the t figure. The tension in the string will be:


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