# Find angular accleration to find torque

pully89
Ok, I have a a motor, so I know the speed in rev/s. The motor is going to power a wheel, so I have a second moment of area?, (I), and I want to calculate the torque. I know I can do this by using T=I*$$\alpha$$. The speed of the motor is 2500 revolutions per second. So $$\omega$$ is 2$$\pi$$f, which is 261.8 radians per second, but from here I am confused on how to work out the angular acceleration, although I think that $$\alpha$$=$$\Delta$$$$\omega$$/$$\Delta$$t, but I'm still not sure how to get alpha, can anyone help?

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