Question

A spring balance records a weight of 1 kgf when a body is suspended from it. When the body is fully immersed in a liquid, the reading recorded by the spring balance is zero. What is the upthrust acting on the body? Also mention the value of the apparent weight of the body.

Answer 1

Answer:

Let m  be mass ,

m=Dv ; D = density of mass , v = vol.

d = density of water.

m×g=Dv×g=60

fully submerged in water

(D−d)v×g=40

dividing both equations

D

D−d=  

3

2

​  

 

solving this :

d

D

​  

=3

Explanation: