Question

characterizing energy relationships
when you view the pendulums swing, it shows that at the very top of the swing ke = 0. what does that tell you about the pendulums motion at that point?

Explanation:

Step1: Recall kinetic - energy formula

The kinetic energy formula is $KE=\frac{1}{2}mv^{2}$, where $m$ is mass and $v$ is velocity.

Step2: Analyze when $KE = 0$

If $KE = 0$, and since $m
eq0$ (the pendulum has mass), then from $KE=\frac{1}{2}mv^{2}=0$, we can conclude that $v = 0$.

Answer:

The pendulum is momentarily at rest at the very top of the swing.