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Block B has mass m and is released from ...

Block B has mass m and is released from rest when it is on top of wedge A, which has a mass 3m. Determine the tension in cord CD needed to hold the wedge from moving while B is sliding down A. Neglect friction.

A

`(mg)/(2) sin (2theta)`

B

`(mg)/(2) sin (3theta)`

C

`(mg)/(2) sin (3theta)`

D

`(mg)/(2) sin (2theta)`

Text Solution

Verified by Experts

The correct Answer is:
A
`T =mg sin theta cos theta, T =(mg)/(2) sin 2theta` .
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