Hooke's Law states that the force F needed to keep a spring stretched x units beyond its natural length is directly proportional to x. Here the constant of proportionality is called the spring constant.

(a) Write Hooke's Law as an equation. (Use k for the constant of proportionality.)

(b) If a spring has a natural length of 5 cm and a force of 30 N is required to maintain the spring stretched to a length of 9 cm, find the spring constant.

(c) What force is needed to keep the spring stretched to a length of 11 cm?

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Hookes Law can be written as an equation as follows F kx where F is the force applied ... View the full answer