Question

if upthrust U is equal to 1/4th the weight of the object in air then the weight felt in the liquid is​

Answer 1

Upthrust = apparent loss of weight of object = weight in air - weight in liquid.

weight in air= W

Upthrust ,U= W/4

weight in liquid = weight in air- Upthrust

= W - W/4

=3W/4

Answer 2

The weight of the object in liquid is equal to the 3/4th the weight of the object in air.

Explanation:

Let the weight of the an object in air is W.

Given the upthrust, U =1/4 x W = W/4.

The formula for the upthrus use Archimedes principle,

Upthrust( apparent loss of weight of object) = weight in air - weight in liquid.

substitute the values, we get

W/4 = W-weight in liquid

weight in liquid  = W-W/4

weight in liquid  = 3W/4.

Thus, the weight of the object in liquid is equal to the 3/4th the weight of the object in air.

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