Circular MotionHardBloom L3
Question
A ring of radius r and mass per unit length m rotates with an angular velocity ω in free space. The tension in the ring is :
Options
A.zero
B.$\frac{1}{2}$mω2r2
C.mω2r2
D.mrω2
Solution
Sol. 
For small θ, sin θ = θ
2Tθ = 2mrθw2r
T = mω2r2
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