Question

Question 2 (ii)
Find the amount of water displaced by a solid spherical ball of diameter:
(ii) 0.21 m
$[Assume\pi =\frac{22}{7}]$

Answer 1

(ii) Radius (r) of the ball
$=\left(\frac{0.21}{2}\right)m=0.105m$

Volume of the ball.
= $\frac{4}{3}\pi r^3$
$=[\frac{4}{3}\times \frac{22}{7}\times (0.105{)}^3]m^3$
$=0.004851m^3$

Therefore, volume of the water displaced = volume of the ball = $0.004851m^3$