3.5 Work-Energy Theorem

Potential and Kinetic Energy

Paul derives kinetic energy from Newton's second law, and illustrates energy transfers for a block of sliding ice.

Energy of Acrobats

A problem solution, nicely simplified, to acrobats Ari, Bari, and their dog Bo.

Work-Energy Theorem

Paul enlists Nellie Newton to illustrate the work-energy theorem to solve a motion problem. Duration: 5:35

Kinetic Energy

Kinetic energy is distinguished from momentum. Duration: 1:13.

Ballistic Pendulum

Paul explains how the classic ballistic-pendulum problem cannot be solved with energy conservation alone.