Recent content by sys.fail

ANYONE? Come on, this can't be that hard.

In the figure provided, all the resistors have a resistance of 4 ohms and all the ideal batteries have an emf of 4 V. What is the current through resistor R? This question had me baffled for a while, I can't quite trace through the circut. Even my physics teacher got lost with the...

Thanks for replying, but would there be a tangential component? And if alpha=a/r, how is it that the linear acceleration is maintained constant?

For a disk in the x-y plane that is rotating about the z-axis which travels through its center of mass, how does the angular acceleration relate to the linear acceleration of a particle on the body? Is the direction and the magnitude both affected? How do we calculate these in vector form? I...