MHT CET Physics question
An uniform rod of length 2 m is suspended from one end such that it is free to rotate about the axis perpendicular to length through that end. What minimum angular speed must be imparted to its lower end to complete one rotation about the axis? (Take g = 10 )
Answer: (A)
Solution
To reach the vertical-up position the centre of mass must rise by L, so giving
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