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Block B a mass m and is released from re...

Block `B` a mass `m` and is released from rest when it is no top of wedge `A` ,which has a mass `3 m` . Determine the tension in cord `CD` while `B` is sliding down `A` . Neglect friction

A

`2mg cos theta`

B

`(mg)/(2) cos theta`

C

`(mg)/(2) sin theta`

D

`mg sin 2 theta`

Text Solution

Verified by Experts

The correct Answer is:
C
`T=N sin theta and N = mg cos theta`
`T=mg cos theta sin theta =(mg)/(2) sin 2 theta`
.
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