A pendulum consisting of a small sphere of mass M suspended by an inextensible and mass less string of length l is made to swing in a vertical plane. If the breaking strength of the string is 2Mg, then the maximum angular amplitude of the displacement form the vertical can be -
Text Solution
Verified by ExpertsThe correct answer is:
C
∴ T max = 
+ mg
∴ 2mg = 
+ mg ⇒ v A = 
∴ v 2 = 
– 2g λ (1 – cos θ )
∴ 0 = g λ – 2g λ (1– cos θ )
⇒ cos θ = 1/2 ⇒ θ = 60 0
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