Question

The volume of a 500 g sealed packet is $350c{m}^3$. Will the packet float or sink in water if the density of water is $1gc{m}^{-3}$? What will be the mass of the water displaced by this packet?

Answer 1

Density of the sealed packet $=\frac{Massofthepacket}{Volumeofthepacket}=\frac{500}{350}gc{m}^{-3}$
$=1.428gc{m}^{-3}$
Density of water = $1gc{m}^{-3}$
Since the density of the substance is more than that of water, it will sink in water.
The volume of water displaced by the packet is equal to the volume of the packet, i.e., $350c{m}^3$.
So, mass of water displaced = Volume of water displaced $\times$ Density of water = 350 g