Question

2. Find the amount of water displaced by a solid spherical ball of diameter
(1) 28 cm
(i) 0.21 m​

Answer 1

Answers

1. 11498.67 cm^3 approx
2. 0.0049 m^3

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Solutions :

1) Diameter of the solid spherical bowl , d= 28 cm

Radius, r= d/2 = 28/2 cm =14 cm

Volume of the water displaced by the ball

= 4/3 π r^3 = 4/3 ×22/7×14×14×14 cm^3

= 11498.6667 cm^3 = 11498.67 cm^3

=> 11498.67 cm^3 Approx ✔︎✔︎

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2) Diameter of the ball d= 0.21 m

Radius r= d/2 = 0.21 m

Volume of the water displaced by the ball

= 4/3πr^3 =4/3×22/7×0.21/2×0.21/2×0.21/2 m^3

=> 0.0049 m^3 ✔︎✔︎

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