A 3520 kg truck moving north at 16.0 m/s makes an INELASTIC collision with an 1480 kg car moving 21.0 m/s east. What is the magnitude of their (joint) velocity after the collision?

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?