Author Topic: push pull swing  (Read 3697 times)


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push pull swing
« on: January 16, 2013, 01:39:17 am »
I have recently gone to an amusement park where i found a strange swing..
 The strange thing about it was that its amplitute can be varied by the persons sitting on it..(by pushing the rod near the feet ) .. My doubt is ''how can an internal force affect the system??'' Or is something else happening there...??

Please refer to the fig. 1a in the second page in

When the swing is moving down from left, if the person on left pushes the foot rod, the subsequent amplitude gets increased...
Can i know the physics of this ??


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Re: push pull swing
« Reply #1 on: May 06, 2021, 03:44:52 pm »
It may be a matter of the force coming out of the object.