In the pulley-block arrangement shown in figure , find the relation between `a_(A),a_(B)` and `a_(C)`

Answer

A, B, C

Explanation

`X_(A) + 2X_(B) + X_(C)`

`=` constant on double differentiating with respect to time, we get
`a_(A) + 2a_(B) + a_(C) = 0`