A body of mass 70 kg, when completely immersed in water, displaces 20,000 $c m^{3}$ of water. Find : (i) the weight of body in water and (ii) the relative density of material of body.

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Solution

i) Weight of the body in water,
W'=W−Vdρg
⇒W'=70000×980−20000×980
=50000 gm−wt

ii) Density of the body,
ρ'=m/Vd
=70000/20000
=3.5 gm/cc

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A body of mass 70 kg, when completely immersed in water, displaces 20,000 cm3 of water. Find : (i) the weight of body in water and (ii) the relative density of material of body.

i) Weight of the body in water, W'=W−Vdρg ⇒W'=70000×980−20000×980 =50000 gm−wt ii) Density of the body, ρ'=m/Vd =70000/20000 =3.5 gm/cc

A body of mass 70 kg, when completely immersed in water, displaces 20,000 $c m^{3}$ of water. Find : (i) the weight of body in water and (ii) the relative density of material of body.

i) Weight of the body in water,
W'=W−Vdρg
⇒W'=70000×980−20000×980
=50000 gm−wt

ii) Density of the body,
ρ'=m/Vd
=70000/20000
=3.5 gm/cc