I've attached a picture to make things easier to read.

Attachment 22819

The rate I got sounds absurd, and it doesn't take the "3 seconds" into consideration.

Did I do something wrong? Any help would be greatly appreciated.

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- Nov 20th 2011, 12:58 PMstefanhinoteFinding rate of change of volume in a cylinder.
I've attached a picture to make things easier to read.

Attachment 22819

The rate I got sounds absurd, and it doesn't take the "3 seconds" into consideration.

Did I do something wrong? Any help would be greatly appreciated. - Nov 20th 2011, 01:36 PMskeeterRe: Finding rate of change of volume in a cylinder.
your calculation of dV/dt is correct, except for your units ... the time does not matter since dV/dt = k(dh/dt)

- Nov 20th 2011, 01:44 PMstefanhinoteRe: Finding rate of change of volume in a cylinder.
- Nov 20th 2011, 01:46 PMSpringFan25Re: Finding rate of change of volume in a cylinder.
your answer is fine except that the units are $\displaystyle mm^3 / sec$

im not sure why 3 seconds is mentioned in the question to be honest, as ther ate of change will be constant provided the candy continues to move at 7mm/sec.

**edit: i was too slow :P** - Nov 20th 2011, 01:47 PMstefanhinoteRe: Finding rate of change of volume in a cylinder.