Simple Pendulum Energy Ratio

Question

A simple pendulum of length L and mass m is released from rest at an angle $$	heta_0$$ from the vertical. What is the ratio of its kinetic energy to its potential energy when the pendulum reaches an angle of $$	heta_0/2$$ with the vertical?

Accepted Answer

$$cos(	heta_0/2) - cos(	heta_0) : 1 - cos(	heta_0/2)$$

Answer

$$sin^2(	heta_0/2) : cos^2(	heta_0/2)$$

Answer

1 : 1

Answer

$$cos(	heta_0) : cos(	heta_0/2)$$

Simple Pendulum Energy Ratio

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