Fluid Mechanics Viscosity Question 256

Question: A body B is capable of remaining stationary inside a liquid at the position shown in Fig. (a). If the whole system is gently placed on smooth inclined plane (Fig (b)) and is allowed to slide down, then ($ 0<\theta <90^{o} $ ). The body will

Options:

A) Move up (relative to liquid)

B) Move down (relative to liquid)

C) Remain stationary (relative to liquid)

D) Move up for some inclination $ \theta $ and will move down for another inclination $ \theta $

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Answer:

Correct Answer: D

Solution:

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