Circular MotionEasy
Question
The pulleys and string in the figure are smooth and of negligible mass. For the system to remain in equilibrium, the angle θ should be
Options
A.0o
B.30o
C.45o
D.60o
Solution
Free body diagram of m is
T = mg .....(i)
Free body diagram of mass √2 m is
2T cosθ = √2 mg .....(ii)
Dividing eq. (ii) by Eq (i), we get
cos θ =
or θ = 45o Create a free account to view solution
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