2) A high heel shoe exerts 50,000. Newtons over a surface area of 0.125 m2 , what is the pressure, in kPa?

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.