Question

when an irregular shaped rock with a mass of 150g is put into a measuring cylinder, the water level is the cylinder rises from 20 ml to 30ml. find the density of the rock

Answer 1

• Mass of rock=150g
• Volume =30mL-20mL=10mL
• Density=?

We know

$\boxed{\sf Density=\dfrac{Mass}{Volume}}$

$\\ \sf\longmapsto Density=\dfrac{150}{10}$

$\\ \sf\longmapsto Density=15g/ml$

Note:-

SI unit of density is kg/m^3