math question (1 Viewer)

poptarts12345

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Sand being poured from a conveyor belt forms a cone with height h and semi vertical angle 60 degrees. Show that the volume of the pile is V = pi h^3, and differentiate with respect to t. At what rate must the sand be poured if its required that the height increase at 8cm/min, when the height is 4 metres?

ANS : 96pi/25 m^3/min
 

Drongoski

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Thanks for pointing out the typos in my solution, CM-Tutor. I didn't even notice them.
 

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