Advertisements
Advertisements
Question
Why do we feel light on our feet when standing in a swimming pool with water up to our armpits ?
Advertisements
Solution
We feel light on our feet when standing in a swimming pool with water up to our armpits because of the buoyant force. It exerts an upward force on our body and makes us feel our apparent weight which is less than our actual weight.
APPEARS IN
RELATED QUESTIONS
An object of weight 200 N is floating in a liquid. What is the magnitude of buoyant force acting on it ?
A boy get into a floating boat.
What happens to the buoyant force on the boat ?
Why is the tip of an allpin made sharp?
State three factors on which the pressure at a point in a liquid depends.
Define upthrust and state its S.I. unit.
A balloon filled with helium gas floats in a big closed jar which is connected to an evacuating pump. What will be your observation, if air from the jar is pumped out? Explain your answer.
The base of the cylindrical vessel measures 300 cm2. Water is poured into it up to a depth of 6 cm. Calculate the pressure of water on the base in the vessel.
The blood pressure reading of a patient is recorded 160/100. Express the lower pressure in SI units.
[Take density of mercury as 13.6 × 103 kgm−3 and the value of ‘g’ as 10 ms−2]
Select the correct option:
The phenomenon due to which a solid experiences upward force when immersed in water is called:
Select the correct option:
When an object sinks in a liquid, its:
