Alrigth we had a lab were we had to find out what is the initial speed to give a particle to go through a vertical loop with no friction (like a rollercoaster) the equation we found was this :(adsbygoogle = window.adsbygoogle || []).push({});

[tex]V_o=\sqrt{(c*G*r)}[/tex]

[tex]V_o = initial speed[/tex]

[tex]c = constant[/tex]

[tex]G = 9.8 m/s^2[/tex]

[tex]r = radius of circle[/tex]

If you fill it in for the condition we had during lab we get :

[tex]V_o=\sqrt{(5*9.8*r)}[/tex]

The question is were does that 5 comes from... what does it represent...

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# Why is the constant 5?

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