JEE Main Physics question

Physics Systems of Particles and Rotational Motion JEE Main

A man turns on a rotating table with an angular speed . He is holding two equal masses at arm's length. Without moving his arms, he just drops the two masses. How will his angular speed change?

(A)It will be less than
(B)It will be more than
(C)It will remain equal to Correct
(D)May be less than, greater than, or equal to depending on the quantity of masses

Answer: (C)

Solution

As the masses are released (not pulled in), they carry away their own angular momentum unchanged at the instant of release; no

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Question ID VK-159042