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In pulley syste shown in figure, block C...


In pulley syste shown in figure, block C is going up at `2(m)/(s)` and block B is going up at `4(m)/(s)`. Find the velocity of block A.

A

`2m/sdarr`

B

`4m//sdarr`

C

`6m//sdarr`

D

`8m//sdarr`

Text Solution

Verified by Experts

The correct Answer is:
B
`l_(1)+l_(2)+l_(3)=` constant

`overset(*)l_(1)+overset(*)l_(2)+overset(*)l_(3)=0`
`(V-4)+(V-2)+(-2)=0`
`rArr2V=8`
`rArr V=4m//s darr`
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