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

a)

b)

c)

d)

Zero



Question ID - 100556 | SaraNextGen Top Answer

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

a)

b)

c)

d)

Zero

1 Answer
127 votes
Answer Key / Explanation : (a) -

(a)

or

Net torque about  is zero

Therefore, angular momentum  about  will be conserved, or

127 votes


127