I need these Questions answers in 2 hours! :p Any help would be greatly appreciated. 1. The problem statement, all variables and given/known data Question 3 Mathematically derive a relationship between the speed v, of a body moving in a circle of radius r, and the frequency f, of the revolutions. Question 4 Use your results for Q3 to next deduce a relationship between Fc and the frequency f. Thus, predict the shape of a graph of Fc against f and the shape of a graph of Fc against f2. State which variables must be held constant in this analysis. 2. Relevant equations v=2πr/T T=1/f 3. The attempt at a solution Question 3: I tried this: v=2πr/T T=2πr/v T=1/f f=1/T f=1/(2πr/v) f=1/(2πr/v) v=2πr/(1/f) v=2πr/f But I believe that answer is wrong. :/ Question 4: Without knowing the above I can't work this out. I actually don't know how to work this out though. Any hints? Thanks!