Exploring the Mechanics of a Pendulum's Swing

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In summary, when a large pendulum is released from eye level, it does not return and hit the face due to a transfer of potential energy to kinetic energy, with the kinetic energy decreasing with each swing due to friction with the air. This is based on the equations PE=mgh and KE=1/2mv^2, which suggest a decrease in kinetic energy during each swing.
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wahllln
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Homework Statement


When I release a large pendulum from about my eye level, why does it not return and hit my face?


Homework Equations


PE=mgh and KE= 1/2mv^2 possibly?


The Attempt at a Solution


I was thinking that it had something to do with a transfer of potential energy to kinetic energy, with the kinetic energy getting smaller in each swing.
 
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  • #2
Based on what I was taught in my physics class, my guess is your teacher is looking for an answer somewhat along the lines of: "Because Kinetic Energy is transferred via friction to the air the pendulum is moving through therefore on its return swing it does not have as much Energy as it had when released."

However I'm not sure that's what you are discussing in your class.
 

1. How does a pendulum hitting a face cause injury?

When a pendulum makes contact with a face, the impact can cause physical harm through force and pressure. The weight and speed of the pendulum can result in bruising, cuts, and fractures.

2. Can a pendulum hitting a face cause brain damage?

Yes, a pendulum hitting a face can cause brain damage. The force of the impact can result in a concussion or other traumatic brain injury. It is important to seek medical attention if a pendulum has hit your face.

3. Why is a pendulum hitting a face dangerous?

A pendulum hitting a face can be dangerous because of the amount of force and weight involved. The face is a sensitive area with many delicate structures, and the impact can cause serious injuries or even death if the force is strong enough.

4. How can the injuries from a pendulum hitting a face be prevented?

To prevent injuries from a pendulum hitting a face, it is important to ensure that the pendulum is properly secured and operated with caution. Protective gear, such as helmets and face shields, can also help reduce the risk of injury.

5. What are the potential long-term effects of a pendulum hitting a face?

The long-term effects of a pendulum hitting a face can vary depending on the severity of the injury. In some cases, there may be permanent scarring or disfigurement. Additionally, there may be psychological effects such as anxiety or fear associated with the event.

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