As shown in fig, if acceleration of M with respect to ground is `2ms^(-2)`, then

Options

A. Acceleration of m with respect to M is `5ms^(-2)`
B. Acceleration of m with respect to ground is `5ms^(-2)`
C. Acceleration of m with respect M is `2ms^(-2)`
D. Acceleration of m with respect to ground is `10ms^(-2)`

Answer

C

Explanation

If acceleration of M is `2ms^(-2)`, then acceleration of m w.r.t M will be `2ms^(-2)`

Acceleration of m w.r.t ground
`a_(m) sqrt(2^(2)+2^(2)+2 xx 2 xx 2 cos (180-37^(@)))=sqrt(8//5) ms^(-2)`.