Question

The total energy of the pendulum pictured in the diagram is 2.4 Joules. Determine the kinetic energy (KE) at Position C (ENTER NUMERICAL VALUE ONLY-do not put the unit)

Answer 1

In a pendulum, the potential energy and kinetic energy are interchanged as the pendulum swings back and forth. At the highest point (position A), all the energy is in the form of potential energy. At the lowest point (position C), all the energy is in the form of kinetic energy.

Since the total energy of the pendulum is 2.4 Joules, the kinetic energy at position C is also 2.4 Joules.