2025 WGS P1 Q7

2025 WGS P1 Q7

Secondary 4
4 marks

The volume, \(V\text{ cm}^3\), of a spherical balloon is given by \(V=\dfrac43\pi r^3\), where \(r\) cm is the radius of the balloon. The radius is increasing at a rate of \(2\text{ cm/s}\).

Calculate the rate at which the volume of the balloon is increasing when the radius is 10 cm.[4]

Solution:

Solution locked

Sign in to view the step-by-step solution

Similar questions are unavailable for this question.
Answer:\(800\pi\text{ cm}^3/\text{s}\)

Need help? Join our JC Math tuition classes.

Learn more