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प्रश्न
Define the term thrust. State its S.I. unit.
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उत्तर
Thrust is the force acting normally on a surface.
Its S.I. unit is 'newton'.
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संबंधित प्रश्न
In which direction does the buoyant force on an object due to a liquid act ?
What is the other name of buoyant force ?
A body sinks in a liquid A but floats in a liquid B. The density of liquid A is ....... than the density of liquid B.
The buoyant force experienced by a body when floating in saltwater is ....... to or same that of when floating in pure water.
Define the term relative density of a substance.
Complete the following sentence :
Pressure at a depth h in a liquid of density p is ......................
Complete the following sentence :
Pressure of a liquid at a given depth is .................. To the density of the liquid.
Complete the following sentence :
A piece of wood is held under water. The upthrust on it will be ___________ the weight of the wood piece.
The mass of a block made of certain material is 13.5 kg and its volume is 15 × 10-3 m3.
(a) Calculate upthrust on the block if it is held fully immersed in water.
(b) Will the block float or sink in water when released? Give a reason for your answer.
(c) What will be the upthrust on block while floating?
Take density of water = 1000 kg m-3.
Two identical pieces, one of ice (density = 900kg per meter cube) and other wood (density = 300kg per meter cube) float on water.
- Which of the two will have more volume submerged inside water
- Which of two will experience more upthrust due to water.
