Question

Provided ρ_iron>ρ_cotton , what is heavier on the surface of Earth: 1 m³ cotton or 1 m³ of Iron? :.

• A. cotton
• B. iron
• C. both iron and cotton

Answer 1

The correct option is B iron

density = (Mass)/(volume)

$m_{iron}={\rho }_{iron}\times 1$
$m_{cotton}={\rho }_{cotton}\times 1$

As ${\rho }_{iron}>{\rho }_{cotton}$

$m_{iron}>m_{cotton}$

$weigh{t}_{iron}>weigh{t}_{cotton}$