- #1
bobraymund
- 27
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Homework Statement
Air is being pumped into a spherical weather balloon. At any time t, the volume of the balloon is V(t) and its radius is r(t).
Express dV/dt in terms of dr/dt.
2. The attempt at a solution
Volume of a Sphere = 4/3 pi r3
I took the derivative of the formula above and got:
I ended up getting:
Did I do this completely wrong? If so, what am I supposed to do?
Thanks,
Bob