A circular pool has a diameter of 3m and is filled to a depth of 70cm. Mr Thorne climbs into the pool and submerges for ten seconds while his son measures the new depth of 72cm. calculate Mr Thorpes volume.
Area of pool
= (π/4)r²
= π*3²/4
= 7.069 m²
Volume = A*h = 7.069*0.02=0.142 m³
(bonus:
estimate of his weight assuming 95% of his body is submerged
=0.142 m³ *950 kg/m³
= 134 kg)