Two fixed frictionless inclined planes making angles 30° and 60° with the vertical are shows in the figure. Two blocks A and B are placed on the two planes. What is the relative vertical acceleration of A with respect to B ?

Options

A. The body will move up (relative to liquid)
B. The body will move down (relative to liquid)
C. The body will remain stationary (relative to liquid).
D. The body will move up for some inclination `theta` and d move down for another inclination `theta`

Answer

D

Explanation

Due to acceleration down the plane, both body `B` and liquid will received the same component of acceleration down the plane.