Question

Explain the term sphere of death.

Answer 1

1. Sphere of Death is a popular show in a circus. During this, two-wheeler rider (or riders) undergo rounds inside a hollow sphere.
2. Starting with small horizontal circles, they eventually perform revolutions along vertical circles.
3. The dynamics of this vertical circular motion is the same as that of the point mass tied to the string, except that the force due to tension T is replaced by the normal reaction force N.
4. The linear speed is more for larger circles but angular speed (frequency) is more for smaller circles (while starting or stopping).