Is cm/s or is ? I think you have mixed up the radius and the volume.....
hello,
the volume of a sphere is given by . an elastic balloon is being blown up so that the radius is increasing at the rate of calculate the rate at which the volume of the baloon is increasing when the radius is 5 cm
this is what i did
=
find
V = therefore =
aplying chain rule = .
1= x
when r = 5
=0.0032 cm/sec