Home
Class 11
MATHS
A spherical balloon whose initial radiu...

A spherical balloon whose initial radius was 3m is expanded such that it's surface area is increasing at a constant rate of `72 pi m^(2)/sec` .What is the speed of a point (in m/s) on the surface in the radially outward direction when radius becomes 9m ?

Promotional Banner

Similar Questions

Explore conceptually related problems

The volume of a spherical balloon is increasing at a rate of 25 cm^(3)//sec . Find the rate of increase of its curved surface when the radius of balloon is 5 cm.

The surface area of a spherical balloon is increasing at the rate of 2 (cm^2)/sec . At what rate the volume of the balloon is increasing when the radius of the balloon is 6 cm?

The surface area of a spherical balloon is increasing at the rate of 2" cm"^(2)//"sec" . At what rate is the volume of the ballon is increasing, when the radius of the ballon is 6 cm ?

Radius of a spherical balloon is increasing with respect to time at the rate of 2//pi" "m//s . Find the rate of change in volume (in m^(3)//s ) of the balloon when radius is 0.5 m?

The radius of a spherical soap bubble is increasing at the rate of 0.2 cm/sec. Find the rate of increase of its surface area, when the radius is 7 cm.

The radius of a spherical soap bubble is increasing at the rate of 0.2cm/sec. Find the rate of increese of its surface area,when the radius is 7cm.

The radius of a soap bubble is increasing at the rate of 0.2cm//s . Find the rate of increase of its surface area when radius = 5 cm.

The radius of a balloon is increasing at the rate of 10 cm/sec. At what rate is the surface area of the balloon increasing when the radius is 15 cm?

A spherical soap bubble is expanding so that its radius is increasing at the rate of 0.02 cm/sec. At what rate is the surface area increasing when its radius is 5 cm ? (Take pi = 3.14 )

The volume of a spherical balloon is increasing at the rate of 20 cm^3/sec . Find the rate of change of its surface area at the instant when radius is 5 cm.