1. The problem statement, all variables and given/known data A 6.40 g coin is placed 16.0 cm from the center of a turntable. The coin has static and kinetic coefficients of friction with the turntable surface of mu_s = 0.890 and mu_k = 0.540. What is the maximum angular velocity with which the turntable can spin without the coin sliding? 2. Relevant equations 3. The attempt at a solution Fnet(x)= n + fs + fg = ma = fs = ma Fnet(y)=n+fs+fg=0 = n = mg ma = mu_s(mg) .0064m(a) = (.890)(.0064kg * 9.8) a = 8.722 m/s^2 a=v2/r 8.722=v2/.16 v = 1.181 m/s I'm supposed to change it to rad/s, but I have no idea on how to do that or even if I did it correctly.