Sand is poured onto horizontal ground at a rate of 50 cm3
/s. The sand forms a right
circular...
Mathematics, 23.05.2021 21:20 yoongnzl
Sand is poured onto horizontal ground at a rate of 50 cm3
/s. The sand forms a right
circular cone with its base on the ground. The volume of the cone increases in such a way
that the radius of the base is always three times the height of the cone. Find the rate of
change, in cm/s to 3 significant figures, of the radius of the cone when the radius is 10 cm.
(5)
Answers: 2
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