Question

the volume of a plastic covered sealed box is 350cm3 and the boxhas a msdd 500g .will the box float or sink

Answer 1

Volume of plastic covered sealed box =350cm3.
Mass of plastic covered sealed box=500gm.
Density =Mass/Volume =500/350 =10/7 gm/cm3 =1.42857 gm/cm3 .So as it is heavier than
water because density of water is 1gm/cm3. hence it sinks .