A spherical balloon inflated at a rate of 4pi cm^3/sec. initial volume of balloon 0, how fast is radius expanding after 9 sec (r=0.03m)?
1 Answer
Mar 14, 2018
Explanation:
Denoting volume by V, the volume of the sphere is
where
Rearranging,
Noting
and further noting
it is given that
So
So (with