Question

when a 14.0 kg mass hangs from a spring that has a spring constant of 550nm the spring has a length of 82 cm. determine the length of the spring before any force is applied to it

Answer 1

F = k x where x is the extension
14 * 9.81 = 550 x
x = 0.25 meters = 25 cm
so
L = 83 - 25 = 58 cm

Answer 2

can someone please explain it