a solid shot-putt is a metallic sphere of radius 4.9 cm. If density of metal is 7.7g/cm³. Find the mass of the shot-putt.
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Step-by-step explanation:
density = 7.7g/cm3
r=4.9cm = 49/10cm
volume = πr3
=22/7 × 49/10 × 49/10 × 49 / 10
v = 154 × 49 × 49 / 1000
mass = density × volume
mass = 77/10 × 154 × 49 × 49 / 1000 g
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