Recent content by ndomer

I was having trouble thinking it was a fixed axis, but using the rotation about the point of contact makes much more sense now. Thank you very much haruspex.

The force acting that moves the wheel horizontally is friction between the ground and wheel, so the moment of force would be frictional force times the larger radius. The applied forces move the wheel angularly. The direction of the angular motion determines which way the friction vector...

Homework Statement A spool of wire rests on a horizontal surface as in Figure P10.87. As the wire is pulled, the spool does not slip at the contact point P. On separate trials, each one of the forces F1, F2, F3, and F4 is applied to the spool. For each one of these forces, determine the...