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Find out velocity of block B in the give...

Find out velocity of block `B` in the given figure : (all the pulleys are ideal and string are inextensible massless)

A

`80 m//s hatj`

B

`-40 m//s hatj`

C

`0 m//s hatj`

D

`-80 m//s hatj`

Text Solution

Verified by Experts

The correct Answer is:
C
Find out …………..
`l_(1)+l_(2)=0`

`20+20-x=0`
`x=40`
`l_(3)+l_(4)=0`
`40-y+40-80=0`
`y =0`
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