1. The problem statement, all variables and given/known data:(adsbygoogle = window.adsbygoogle || []).push({});

A body of mass 81.7g is moving in a circular path of radius 0.65m. If we calculate the centrifugal force on it to have a magnitude of 0.35N, what is the period of revolution? (2 decimals, UNITS!)(p = 3.14)

2. Relevant equations:

I'm given the following equations:

a = v^2/r

v = Circumference/Period = 2pi/T

a = 4pi^2r/T^2

F = Mg

F = ma

3. The attempt at a solution:

I took .35 = mv^2/r so .35 = 81.7v^2/.65 so v = .5276

then I took T = 2pir/v so T = 2pi(.65)/.5276 so T =7.736

I got this wrong when I entered it. I may have rounded wrong at the end or didn't do it right in the first place Any help would be appreciated.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Uniform Circular Motion Question

**Physics Forums | Science Articles, Homework Help, Discussion**