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in Physics by (69.1k points)

The maximum value attained by the tension in the string of a swinging pendulum is four times the minimum value it attains. There is no slack in the string. The angular amplitude of the pendulum is

(A)  90°

(B)  60°

(C)  45°

(D)  30°

1 Answer

+1 vote
by (73.1k points)
selected by
 
Best answer

Correct option  (B) 60° 

Explanation:

Centripetal force at point A :

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