Question

Select One Correct Option from the following: A cubical block of side a is moving withvelocity $\upsilon$ on a horizontal smooth plane (see ure). It hits a ridge at point O. The speed of the block after it hits O is
(A) $\frac{3\upsilon}{4\alpha }$(B) $\frac{3\upsilon}{2\alpha }$(C) $\frac{\sqrt{3} }{\sqrt{2}\alpha}$
(D) zero.

Answer 1

d option is correct.
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Answer 2

D is the correct answer

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