M.L Aggarwal book Important Question of class 10 chapter Based on Mensuration for ICSE BOARD.
A shot-put is a metallic sphere of radius given. If the density of the metal is also given, find the mass of the shot-put.
This is the Question Number 04, Exercise 17.3 of M.L Aggarwal.
Deepak BoraNewbie
A shot-put is a metallic sphere of radius 4.9 cm. If the density of the metal is 7.8 g per cm cube, find the mass of the shot-put.
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Given radius of the metallic sphere, r = 4.9 cm
Volume of the sphere, V = (4/3)r3
V = (4/3)×(22/7)×4.93
V = 493.005
V = 493 cm3 (approx)
Given Density = 7.8 g per cm3
Density = Mass/ Volume
Mass = Density×Volume
= 7.8×493
= 3845.4 g
Hence the mass of the shot put is 3845.4 g.