Question

The volume of a 500 g sealed packet is 350 cm³. Will the packet float or sink in water if the density of water is 1 g cm⁻³? What will be the mass of the water displaced by this packet?

Answer 1

Mass of the sealed packet = 500 g

Volume of sealed packet = 350 cm³

Density of water = 1 g/cm³

Since density = `"mass"/"volume"`

Density = `500/350`

Density = 1.42 g/cm³

Hence the density of the given sealed packet is 1.42 g/cm³.

Since the density of the given sealed packet is more than the density of water = 1 g/cm³, it will sink in water.

Volume of water displaced = 350 cm³

Density = `"mass of water displaced"/"volume of water displaced"`

1 = `"Mass of displaced water"/350`

Mass of water displaced = 350g