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A particle is projected in a smooth fixe...

A particle is projected in a smooth fixed square tube from point A. The tube is in vertical plane and D and B are at same horizontal level as shown in figure. Then : (Assume velocity of particle changes smoothly at corners)

A

velocity at A is equal to velocity at C

B

velocity at B is equal to velocity at D

C

velocity at A is equal to negative of velocity at C

D

speed ast B is equal to speed at D

Text Solution

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The correct Answer is:
D
A particle is ………..
At B and D magnitude of velocity are same but direactions are different.
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