A piece of machinery is spinning at 760rpm . When a brake is applied, its rotation rate drops to 480rpm while it turns through 210 revolutions. What is the magnitude of the angular deceleration? Answer in Rad/s^2 Eqn I used:[tex]\omega[/tex]^2=[tex]\omega[/tex]_0_^2+2[tex]\alpha[/tex](change in theta) I put 480^2=760^2+2(alpha)210 I got 3.79e-3... Wrong...:( what did I do wrong? Ithink its the units, they are very confusing.