Question: In Exercises use Hookes Law to determine the variable force in the spring problem. An overhead garage door has two springs, one on each side

In Exercises use Hooke’s Law to determine the variable force in the spring problem.

An overhead garage door has two springs, one on each side of the door. A force of 15 pounds is required to stretch each spring 1 foot. Because of the pulley system, the springs stretch only one-half the distance the door travels. The door moves a total of 8 feet, and the springs are at their natural length when the door is open. Find the work done by the pair of springs.

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