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Physics - Fluid Question with Solution | TestHub

PhysicsFluidArchimedes principleMedium3 minQB

PhysicsMediumsingle choice

A balloon of total mass 'M' and a fixed size starts coming down with an acceleration $f (f < g)$ . The fraction of the total mass of the balloon which must be dropped from it so that it starts going up with an acceleration of $f$ (assuming negligible air resistance) is :-

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Answer:

Solution:

$M g - B = M f$
$B - (M - CM) g = (M - CM) f$
$CM g = (2 M - CM) f$
$C g + C f = 2 f$
$C = \frac{2 f}{g + f}$

Stream:JEESubject:PhysicsTopic:FluidSubtopic:Archimedes principle

⏱ 3mℹ️ Source: QB

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