Momentum of a Swing

  • Thread starter nelsontod
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  • #1
nelsontod
I need help with an equation for the angle of the legs of a swing. I am building a swing. It is only 4 feet high, it is an indoor apartment swing for my son. I would like to know what the minimum legs angle would need be to support swinging 25 pounds in a 180 (probably less) arch. And if I could get some equation for that , that would be great. Is it centrifuge momentum, rotational velocity? I got B's in physics 1 and 2.

Thank you so much! just trying to help my kid stop crying and sleep more. When i swing him with my arms in teh car seat it works miracle, but he needs the arch that seats at target and walmart dont provide.
 

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  • #2
anorlunda
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Might something like a jumper be safer than a swing? The one I checked claims to be for children up to 28 pounds.

30831684_R1.jpg


If you do use a swing, remember that you can bolt the legs to the floor rather than depend on angles.
 

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  • #3
nelsontod
yes, that is true. But i have no beam.
 
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anorlunda
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25672183e83e6d1cf5c8d00ce4dff8cf--white-interior-doors-painting-interior-doors.jpg


yes, that is true. But i have no beam.

People typically use the trim of a doorway for the beam.

Jumpers also come with free standing brackets. The reason I trust them more than a home made swing is product liability. To avoid lawsuits the manufacturer must do thorough product safety engineering and testing.




jolly_jumper_and_stand_with_musical_mat.jpg


The disadvantage is that if your son weighs 25 pounds, he will exceed 28 pounds soon.
 

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  • #5
nelsontod
he weighs 8 pounds now.
 
  • #6
berkeman
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would need be to support swinging 25 pounds in a 180 (probably less) arch
What the heck are you planning for the little guy? Stick to standard designs and dimensions. Just look at the Tors R Us website or similar to see what are standard dimensions for little kid indoor swings. We can't be of much help if you are planning on something that swings 180 degrees.

https://www.google.com/search?biw=1.....0...1.1.64.psy-ab..1.2.275....0.JdzR_fhFRDM

https://i5.walmartimages.com/asr/9e....jpeg?odnHeight=450&odnWidth=450&odnBg=FFFFFF
9e1c1629-c7f2-439c-9ff1-7dff8cd1f9a7_1.9995f914f9ff10e10d973e120c0aefa6.jpg
 

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