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If the system is released, then the acce...

If the system is released, then the acceleration of the centre of mass of the system is :
.

A

`(g)/(4)`

B

`(g)/(2)`

C

g

D

2 g

Text Solution

Verified by Experts

The correct Answer is:
A

(a) `a = (3m - m)/(3m + m) g = (g)/(2)`
`a_(cm) = (3a + 3m(-a))/(m + 3m)`
=`(-2 ma)/(4 m) = -(a)/(2) = -(g)/(4)`.
.
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Knowledge Check

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  • Net external force acting on a system of particle is not equal to zero. If velocity and acceleration of the centre of mass of the system of particles at some instant of time are found to be v and a respectively select possible option (s).

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