A body weighs 50 gf in air and 30 gf when fully immersed in water. Find the upthrust, the volume of the body and its relative density.
Fluids
Original Khojo Papers practice question — not from a past board paper.
Archimedes' principle states that when a body is wholly or partly immersed in a fluid it experiences an upthrust equal to the weight of the fluid it displaces. The law of flotation states that a floating body displaces a weight of fluid equal to its own weight.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
A body floats when its density is less than that of the fluid.
From the same topic and chapter, at a similar level.
A body weighs 50 gf in air and 30 gf when fully immersed in water. Find the upthrust, the volume of the body and its relative density.
Fluids
A body of volume 200 cm3 is fully immersed in water. Calculate the upthrust on it. Take the density of water as 1 g cm−3 and g = 10 m s−2.
Fluids
The relative density of a substance is 2.5. What is its density in kg m−3, and will it float on water?
Fluids
Why is it easier to swim in sea water than in river water?
Fluids
A force of 200 N acts normally on a surface of area 0.5 m2. Calculate the pressure.
Fluids
Calculate the pressure exerted at the bottom of a tank of water 5 m deep. Take the density of water as 1,000 kg m−3 and g = 10 m s−2.
Fluids