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24-Ruby IV
ValeryOchkov24-Ruby IV
24-Ruby IV
December 2, 2022
Question

Pendulum acceleration

  • December 2, 2022
  • 1 reply
  • 1762 views

Here, the students and I saw an animation on the site

Pendulum - Wikipedia

showing the position of the velocity and acceleration vectors of the pendulum.
We wanted to reproduce the acceleration animation in Mathcad - see the animation and the file in the attachment.
But our animation is different from Wikipedia's animation -  we have a maximum acceleration, and there is a minimum. Where is the error - with us or in Wikipedia?

Pendulum-a.gif

 

1 reply

F
Fred_Kohlhepp23-Emerald I
23-Emerald I
April 27, 2023

Words and images only!  In Prime, gifs do not animate.  

Fred_Kohlhepp_0-1682595802798.png  A pendulum is shown suspended at an angle from vertical. The red vector represents the force due to gravity--always vertical. The green vector represents the centripetal force from the pendulum arm--always radial.  

Fred_Kohlhepp_1-1682595900248.png  The summation of those two accelerations (mass is the same) result in the tangential acceleration (blue vector)--always tangential.

 

 

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