As shown in the figure, if acceleration of M with respect to ground is `5m//s^(2)`, then :

Options

A. Acceleration of m with respect to M is `5 m//s^(2)`
B. Acceleration of m with respect to M is `2 m//s^(2)`
C. Acceleration of m with respect to ground `5 m//s^(2)`
D. Acceleration of m with respect to ground to `sqrt10) m//s^(2)`

Answer

A, D

Explanation

Change in the length of the string should be zero.
Hence, | X | = | x |
| X | = displacement of M with respect to ground
| x | = displacement m with respect to M