A ball has a redius of 21 CM .If the ball weigh 3 gram per CM cube,then find the weight of ball
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Answer:
The weight of the given ball is 116.424 kg.
Step-by-step explanation:
The radius of ball is 21 cm
The volume of sphere = 4/3πr³
Substitute the values and you get
Volume of ball = 4/3 x 22/7 x 21 x 21 x 21
= 88 x 21 x 21
= 38808 cm³
Now according to the question 1 cm³ = 3 g
Therefore weight of the ball = Volume of ball x 3
Substitute the values and you get
Weight = 38808 x 3
= 116424 g
= 116.424 kg ( 1 g = 1000 kg )
Therefore the weight of the given ball is 116.424 kg.
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Prizam0170477:
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