002 Weight of snow ball

Radius of snowball
$r = \frac{1}{2}(1.2)$

$r = 0.6 \, \text{ m}$
 

Volume of snowball
$V = \frac{4}{3}\pi r^3$

$V = \frac{4}{3}\pi (0.6^3)$

$V = 0.288\pi \, \text{ m^3}$
 

Weight of snowball
$W = \gamma V$

$W = 480(0.288\pi)$

$W = 434.3 \, \text{ kg}$