a shot putt is a metallic sphere of radius 4.9cm. If the density of the metal is 7.8 g per cm cube. find the mass of metallic sphere???
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we know that volume of sphere=4/3πr^3
therefore ...volume of short put=4/3×22/7×4.9×4.9×4.9=493cm^3(approx)
now, density =mass×volume
therefore
7.8=493×v
v=7.8/493
v=0.158kg answer!
therefore ...volume of short put=4/3×22/7×4.9×4.9×4.9=493cm^3(approx)
now, density =mass×volume
therefore
7.8=493×v
v=7.8/493
v=0.158kg answer!
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