A common technique used to measure the force constant k of a spring is the following:
Hang the spring vertically, then allow a mass m to stretch it a distance d from the equilibrium position under the action of the “load” m g. Find the spring constant k if the spring is stretched a distance 67 m by a suspended weight of 76 N. The acceleration of gravity is 9.8 m/s2 . Answer in units of N/m.
