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Is the pen at rest or in motion when you hang it?

Answer :

Final answer:

A pen hung from a string is technically at rest unless an external force displaces it. This concept from physics is known as a simple pendulum. If the pen is displaced, it swings back and forth due to simple harmonic oscillation.

Explanation:

If a pen is hung from a string, it is technically at rest unless an external force displaces it from its equilibrium position. In the world of physics, this setup is often referred to as a simple pendulum where the pen (also known as the pendulum bob) lies at the equilibrium position, hanging straight down from the string. Here, the equilibrium position is where the pen is hanging directly downward (an angle of zero degrees) suspended by the string.

Once the pen, or pendulum bob, is displaced, it swings back and forth, mimicking the motions of a clock pendulum or a child's swing. However, this swinging motion is only experienced when the pen is displaced by less than 15 degrees and is due to the restoring force being directly proportional to its displacement, causing what is known as simple harmonic oscillation. Without any external forces applied, it would rest at the equilibrium position.

In conclusion, whether the pen is in motion or at rest is entirely dependent on the presence of an external force. In the absence of one, the pen will typically remain at rest in its equilibrium position.

Learn more about Simple Pendulum here:

https://brainly.com/question/37947830

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