Consider the following problem: Water starts running out of a small hole in the bottom of a bowl so that the depth of the water in the bowl at time t is x. The rate at which the volume of water is decreasing is proportional to x.
Why did the book represent the relationship as: -dV/dt ∝ x. knowing that as x decreases the volume decreases as well. Thus putting a negative sign will make the decrease in x cause an increase in V.
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rate of decrease always negative? watch
- Thread Starter
- 30-10-2016 18:43
- Official Rep
- 01-11-2016 20:03
Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.
Just quoting in Fox Corner so she can move the thread if needed
Spoiler:Show(Original post by Fox Corner)