(adsbygoogle = window.adsbygoogle || []).push({}); You are designing a brake to stop a saw blade within 0.76 revolutions after the motor is turned off. The initial speed is 1200 revolutions per minute. The blade has a radius of 0.052m and a mass of 0.34 Kg. Find the torque required in nt m. I= m R R/2 for a uniforum disk

I applied equation 4 to find the angular acceleration. And then I applied this equation, plugging in the moment of inertia I= m R R/2 and angular acceleration

But I don't get the right answer. The answer is 0.76. Whar's wrong with my step ? thx

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# Homework Help: Need help on Torque

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