Question

MCQ : A body floats in a liquid contained in a beaker. The whole system falls freely under gravity. The upward thrust on the body due to the liquid then is

  • Matter: Structure and Properties
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Answer

Question

A body floats in a liquid contained in a beaker. The whole system falls freely under gravity. The upward thrust on the body due to the liquid then is

  1. Zero
  2. equal to the liquid displaced
  3. equal to the weight of the body in the air
  4. equal to the weight of the immersed portion in the liquid

Answer

equal to the liquid displaced

Explanation

The body is floating in the liquid, which means that it displaces a certain volume of the liquid. When the system falls freely under gravity, the buoyant force acting on the body due to the liquid will still be equal to the weight of the fluid displaced by the body.

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