If a steel, thin-shelled wheel of radius r and mass m is moving along the road at 2 m/s, what is the total kinetic energy? 1) 2m 2) 3m 3) 1m 4) 5m 5) 4m

Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?