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Question
Density Centripetal  Acceleration

When you Google centripetal acceleration + density, nothing really shows up.

1.  Does centripetal acceleration depend on the density of the ball at the end of the string.

2.  If so, what density equation then equals   v squared / r  

Thanking you,
Brenda

Answer
1. It doesn't show up because centripetal acceleration, like all accelerations, is the rate of change on velocity.  Density and likewise mass has nothing to do with it. Centripetal acceleration is given by:
ac=v^2/r
If density or mass mattered it would appear in the equation.
2. It doesn't and there is no such equation.

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James J. Kovalcin

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I am teaching or have taught AP physics B and C [calculus based mechanics & electricity and magnetism] as well as Lab Physics for college bound students. I have a BS in Physics from the University of Pittsburgh and a Master of Arts in Teaching from same. I have been teaching physics for 34 years. I am constantly updating my skills and have a particular interest in modern physics topics.

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