You are asked to design spring bumpers for the walls of a parking garage. A freely rolling 1300 kg car moving at 0.650 m/s is to compress the spring no more than 7.00 cm before stopping.

A. What should be the force constant of the spring?

B. What is the maximum amount of energy that gets stored in it?

C. If the springs that are actually delivered have the proper force constant but can become compressed by only 5.00 cm , what is the maximum speed of the given car for which they will provide adequate protection?