Homework Help: Physics

Posted by hayley on Sunday, July 8, 2012 at 7:07pm.

A string is wrapped around a pulley of radius .20m and momentum of inertia .40 kg•m^2. The string is pulled with a force of 28 N. what is the magnitude of the resulting angular acceleration?

Can someone please go through the steps or at least guide me through them. I missed a few days in class and am trying to figure this out without any notes on it or anything.

Physics - bobpursley, Sunday, July 8, 2012 at 7:09pm
force*radius=torque=momentinertia*angularacceleration

angular acceleration=force*radius/momentI

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