select at what point the pendulum has the greatest kinetic energy? start
select at what point the pendulum has the greatest kinetic energy? start
Answer
Explanation:
Step1: Recall kinetic - energy formula
The kinetic - energy formula is $K = \frac{1}{2}mv^{2}$, where $m$ is mass and $v$ is velocity.
Step2: Analyze pendulum motion
A pendulum's mass $m$ is constant. Its velocity $v$ is maximum at the lowest point of its swing.
Step3: Determine point of greatest KE
Since $K$ is proportional to $v^{2}$ and $v$ is maximum at the lowest point, the pendulum has the greatest kinetic energy at the lowest point of its motion.
Answer:
The lowest point of the pendulum's swing.