Momentum and CollisionHard
Question
A body flots in a liquid contained in a beaker. The whole system as shown in fugure falls freely under gravity. The upthrust on the body is
Options
A.zero
B.equal to the weight of liquid displaced
C.equal to the weight of the body in air
D.equal to the weight of the immersed portion of the body
Solution
In a freely falling system geff = 0 and since,
Upthrust = ViρL geff
(Vi = immersed volume, ρL = density of liquid)
∴ Upthrust = 0.
Upthrust = ViρL geff
(Vi = immersed volume, ρL = density of liquid)
∴ Upthrust = 0.
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