Questions
Two cylindrical vessels of equal cross sectional area contain water up to heights and . The vessels are inter connected so that the levels in them become equal. Calculate the work done by the force of gravity during this process if is the density of water.
detailed solution
Correct option is A
Since volume is constantHeight in each vessel after inter connection is h1+h22Mass of water in vessel in which liquid falls =ρAh1-h1+h22=ρAh1-h22Height descended by this water = h1-h22Work done =ρAh1-h222gSimilar Questions
A bucket of mass ‘m’ tied to a light rope is lowered at a constant acceleration of ‘g/4’. If the bucket is lowered by a distance ‘d’, the work done by the rope will be (neglect the mass of the rope)
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