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MHT CET Physics question

PhysicsLaws of MotionMHT CET

A mass 'm' is tied to one end of a spring and whirled in a horizontal circle with constant angular velocity. The elongation in the spring is 1 cm. if the angular speed is doubled, the elongation in the spring is 6 cm. The original length of the spring is [MHT-CET 2021]

Answer: (D)

Solution

and ; dividing,

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Question ID VK-039579