Question

The principle involved in the performance of a circus acrobat is the conservation of

• A. translational energy
• B. linear momentum
• C. angular momentum
• D. mass
• E. rotational energy

Hint:

Angular momentum is conserved in the absence of external torque. This principle is crucial in activities like gymnastics and acrobatics.

Answer 1

The Correct Option is C

The performance of a circus acrobat, such as when they perform a somersault or spin, is based on the conservation of angular momentum. Angular momentum is conserved when no external torque acts on the system. For example, when a person pulls their arms in while rotating, their moment of inertia decreases, and their rotational speed increases to conserve angular momentum. 
Hence, the correct answer is (C).