if 0.4 force is required to pull a body attaching to spring 0.1m from the position of equality find the spring constant?

To find the spring constant, we need to use Hooke's Law, which states that the force required to stretch or compress a spring is directly proportional to the displacement from its equilibrium position.

Hooke's Law equation is: F = -kx

In this case, we are given the force (F = 0.4 N) and the displacement (x = 0.1 m). We need to solve for the spring constant (k).

1. Start by rearranging the equation F = -kx to solve for k:
k = -F / x

2. Substitute the given values into the equation:
k = -0.4 N / 0.1 m

3. Calculate the value:
k = -4 N/m

The spring constant is -4 N/m. The negative sign indicates that the spring is in the opposite direction of the applied force.