You have a pendulum of mass 'm' on a massless cord length 'r'. You set it into motion and measure the maximum angle the cord makes with vertical as
.
- a.
- What is the total energy 'E' of the system in terms of '
', 'm' and 'r'?
- b.
- Once you have established 'E', what would the Potential Energy (PE), the Kinetic Energy (KE) and velocity (v) be, given an angle
where
?

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