Problema Solution
A spherical Styrofoam ball 40 centimeters in diameter is used as a float. If the ball sinks to a depth of 32 centimeters, find the area of the wetted surface.
Answer provided by our tutors
The radius R = 20 cm
The altitude H = 32 cm
The wetted surface area = 2*pi*R*H = 2*pi*20*32 = 1280*pi square cm