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The velocity of A at an instant is 4 m//...

The velocity of A at an instant is `4 m//s` rightwards. Then the velocity of block B is

A

`4 m//s` downwards

B

`2 m//s` upwards

C

`2 m//s` downwards

D

`1 m//s` upwards

Text Solution

Verified by Experts

The correct Answer is:
C
Power method

`T xx v_(A) cos 0^(@) + 2T xx v_(B) cos 180^(@) = 0`
`Tv_(A) - 2T v_(B) = 0`
`v_(A) = 2v_(B)`
`v_(B) = 2 m//s` downwards
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