A body floats in a liquid contained in a beak | vedclass

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Question

(A) The upthrust (buoyant force) on a body submerged in a liquid is given by the formula:$F_B = V ho_{	ext{liquid}} (g - a)$where $V$ is the volume

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Zero

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(A) The upthrust (buoyant force) on a body submerged in a liquid is given by the formula:$F_B = V ho_{	ext{liquid}} (g - a)$where $V$ is the volume of the liquid displaced,$ho_{	ext{liquid}}$ is the density of the liquid,$g$ is the acceleration due to gravity,and $a$ is the downward acceleration of the system.In the case of free fall,the entire system (beaker and liquid) accelerates downwards with an acceleration equal to the acceleration due to gravity,i.e.,$a = g$.Substituting $a = g$ into the formula:$F_B = V ho_{	ext{liquid}} (g - g) = V ho_{	ext{liquid}} (0) = 0$.Therefore,the upthrust on the body is zero.

$A$ body floats in a liquid contained in a beaker. The whole system,as shown,falls freely under gravity. The upthrust on the body due to the liquid is

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