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A cubical block of side α is moving with velocity v on a horizontal smooth plane as shown. It hits a ridge at point O. The angular speed of the block after it hits O is

 

(a)   3v/4a

(b)  3v/2a

(c)  √3v/√2a

(d)  Zero

Ans. a

(5)

5/5 - (1 vote)

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