Question

a body weighs 550 gf in air and 370 gf in water when it is completely immersed in water.Find
(1).The upthrust on the body.
(2).The volume of the body.(Density of water=1gcm)

Answer 1

Answer:

Explanation:

Weight of the body in air =500gf

Weight of the body in water =450gf

∴ (i) loss of weight of the body when immersed in water =500gf−450gf=50gf.

(ii) upthrust of the body=loss in weight of the body =50gf.

(iii) upthrust =Vdg

⇒50gf×g=V×1gcm  

−3

×g(densityofwater=1gcm  

−3

)

⇒volumeofthebodyV=50cm  

3

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