Question

A block floats partially submerged in a container of liquid. When the entire container is accelerated upward, which of the following happens? Assume that both the liquid and the block areincompressible.

(A) The block descends down lower into the liquid.(B) The block ascends up higher in the liquid.(C) The block does not ascend nor descend in the liquid.
(D) The answer depends on the direction of motion of the container.(E) The answer depends on the rate of change of the acceleration

Answer 1

When the entire container is accelerated upward, the block does not ascend nor descend in the liquid.

Step-by-step explanation:

The answer to the question is (C) The block does not ascend nor descend in the liquid.

When the entire container is accelerated upward, the liquid and the block inside it will experience the same acceleration. Since the block is partially submerged, both the liquid and the block will move together without any relative change in their positions. The buoyant force on the block remains the same, and the block does not ascend nor descend in the liquid.