A spherical balloon is being inflated and, at the instant when its radius is 3 m, its surface area is increasing at a rate of 2m2s-1. Find the rate of increase at the same instant of
a) the radius,
b) the volume.

Question

A spherical balloon is being inflated and, at the instant when its radius is 3 m, its surface area is increasing at a rate of 2m2s-1. Find the rate of increase at the same instant of
a)	the radius,
b)	the volume.

amistre64 · Answer

need to know the formulas to associate with

amistre64 · Answer

and the question needs to be better formed, i cant make to much sense of it after "balloon"

amistre64 · Answer

when the radius is 3, how fast is it changing

and how fast is the volume changing ... makes a little more sense now

amistre64 · Answer

so, surface area and volume formulas would help