1.

The volume of 500 g sealed packet is 350 `cm^3`. Will the packet float or sink if the density of water is `1(g)/(cm^3)`? What will be the mass of the water displaced by this packed?

Answer» Here, Mass of packet, `M=500g`
volume of the packet, `V=350cm^3`
Clearly, density of packet, `d=(M)/(V)=(500)/(350)=1.428(g)/(cm^3)`
Since the density of packet is more than density of water the packet will sink.
As the packet is fully submerged in water,
mass of water displaced by the packet`=`volume of the packet`xx`density of water
`=(350cm^3)xx(1(g)/(cm^3))`
`=350g`


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