An ideal pendulum is often discussed when studying simple harmonic motion. What are the conditions needed for an ideal pendulum? Choose three correct answers.
Answer
A
The pivot on which the pendulum swings is frictionless.
B
Gravitational force acts to pull the pendulum’s mass down.
C
The mass of the rod of the pendulum is evenly distributed along the rod.
D
The pendulum swings through its equilibrium position as a result of inertia.