2. In the movies, we often see a car chase end with one car barely balanced on the edge of a cliff. The people in the car could stay where they are, or move to the front or back of the car. Given your vast knowledge of torque, explain why one of the three possibilities is better then the others for the occupants of the teetering car.

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.