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A system is shown in the figure. Block A...

A system is shown in the figure. Block `A` moves with velocity `10m//s`. The speed of the mass `B` will be `:`

A

`10sqrt(2) m//s`

B

`5sqrt(3) m//s`

C

`(20)/(sqrt(3))m//s`

D

`10m//s`

Text Solution

Verified by Experts

The correct Answer is:
C

`(v_(1) +v_(2))xx(1)/(sqrt(2))=10`
`v_(1) cos 15^(@) = v_(2) cos 75^(2) rArr v_(1) = v_(2) xx (sqrt(3)-1)/(sqrt(3)+1)`
velocity of B `= sqrt(v_(1)^(2)+v_(2)^(2))=(20)/(sqrt(3)) m//s`
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