Question

Medical Q-Bank-2020
75. A solid uniform circular disc of mass m and radius
R is spinning with angular velocity w about its
center of mass and is gently placed upon rough
horizontal surface. What is the angular velocity of rotation
when pure rolling start
(1) W/3
(2)W/2
(3)2W/3
(4)3W/4
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Answer 1

Answer:

2 is the right answer

acoording to me