The length of the undeformed spring is 20 cm, the coefficient of spring stiffness is 20 N / m

The length of the undeformed spring is 20 cm, the coefficient of spring stiffness is 20 N / m. What is the length of the spring if it is stretched with a force of 1 N?

L = 20 centimeters = 0.2 meters – the length of the undeformed spring;

F = 1 Newton – the force with which the spring is stretched;

k = 20 N / m – coefficient of spring stiffness.

It is required to determine the length of the spring after stretching L2 (meter).

Let’s find the amount of tension of the spring:

dx = F / k = 1/20 = 0.05 meters.

Then the length of the spring after stretching will be:

L2 = L1 + dx = 0.2 + 0.05 = 0.25 meters.

Answer: the length of the spring will be 0.25 meters.