Kinetic energy is based on what?

Kinetic energy is based on what?

• A. Body position only
• B. Height of COM only
• C. Body motion/velocity
• D. Joint angle only

Answer: (C)

Kinetic energy is the energy of motion. It depends on how fast the body is moving (velocity) and its mass; translational kinetic energy is 1/2 m v^2 and rotational kinetic energy involves angular velocity. Height of the center of mass relates to potential energy, not kinetic energy, and joint angle describes a static configuration or posture rather than the motion itself. So the factor that determines kinetic energy is body motion/velocity.

Kinetic energy is the energy of motion. It depends on how fast the body is moving (velocity) and its mass; translational kinetic energy is 1/2 m v^2 and rotational kinetic energy involves angular velocity. Height of the center of mass relates to potential energy, not kinetic energy, and joint angle describes a static configuration or posture rather than the motion itself. So the factor that determines kinetic energy is body motion/velocity.