Calculating Centripetal Force in Pendulums - Tips and Tricks | THx

In summary, centripetal force is the force responsible for keeping an object moving in a circular path and changing its velocity. In a pendulum, this force is provided by the tension in the string or rod holding it in place. The length of the pendulum does not affect the centripetal force, but as the speed of the pendulum increases, so does the force. However, centripetal force is not strong enough to break the pendulum as it only keeps it in its circular motion within the strength of its materials.
  • #1
duoheer
13
0
How do you calculate the centripetal force in pendulums?
THx
 
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  • #2
Draw a free body diagram first. Its always a good start.
 
  • #3
duoheer said:
How do you calculate the centripetal force in pendulums?
THx

You use [itex] F_c = m {v^2 \over R} [/itex] where R is the radius of the circle which is the length of the pendulum. You have to be given the speed or to find it using conservation of energy.

Patrick
 

1. What is centripetal force?

Centripetal force is the force that keeps an object moving in a circular path. It is always directed towards the center of the circle and is responsible for changing the direction of the object's velocity.

2. How is centripetal force related to pendulums?

In a pendulum, centripetal force is what keeps the bob moving in a circular motion as it swings back and forth. This force is provided by the tension in the string or rod that holds the pendulum in place.

3. How does the length of the pendulum affect centripetal force?

The length of the pendulum affects the period of its oscillations, but not centripetal force. As long as the pendulum is swinging in a circular motion, the centripetal force will remain constant regardless of its length.

4. What happens to centripetal force when the speed of the pendulum increases?

As the speed of the pendulum increases, the centripetal force also increases. This is because the faster the pendulum is moving, the greater the force needed to keep it in its circular path.

5. Can centripetal force cause the pendulum to break?

No, centripetal force is not strong enough to break the pendulum. The force is only responsible for keeping the pendulum moving in its circular path, and as long as the force is within the strength of the pendulum's materials, it will not cause it to break.

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