Advertisements
Advertisements
प्रश्न
A block of wood is floating on water with its dimensions 50 cm x 50 cm x 50 cm inside water. Calculate the buoyant force acting on the block. Take g = 9.8 N kg-1.
उत्तर
Volume of block of wood = 50 cm × 50 cm × 50 cm = 125000 cm3 = 0.125 m3
Given , g = 9.8 m/s2
Buoyant force = Vρg
= 0.125 × 1000 × 9.8 N
= 1225 N
APPEARS IN
संबंधित प्रश्न
In what direction does the buoyant force on an object immersed in a liquid act?
A body experiences the same buoyant force while floating in water or alcohol.
The S.I. unit of density is ..........
A piece of wood floats on water. The buoyant force on wood will be
A cork piece floats on water surface while an iron nail sinks in it. Explain the reason.
Describe a simple experiment to demonstrate that a liquid enclosed in a vessel exerts pressure in all directions.
Complete the following sentence :
Two balls, one of iron and the other of aluminium experience the same upthrust when dipped completely in water if _____________ .
Two spheres A and B, each of volume 100 cm3 is placed on water (density = 1.0 g cm-3). The sphere A is made of wood of density 0.3 g cm-3 and sphere B is made of iron of density 8.9 g cm-3.
- Find:
- The weight of each sphere, and
- The upthrust on each sphere.
- Which sphere will float? Give reason.
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.
What do you mean by buoyancy?
