Question

explain why restoring force does not depends on amplitude instead by being on displacement​

Answer 1

Explanation:

The restoring force is responsible to restore original shape and size of the object. The amplitude is the maximum displacement from the zero value during one period of cycle.

The expression for the restoring force is as follows;

$F=-kx$

Here, k is the proportionality of constant or spring constant, F is the restoring force and x is the displacement.

The restoring force depends on the displacement. It is a function of the position of the mass only.

For example, if you stretch the spring to a greater length causes it to exert a force which will bring back towards in equilibrium length.

Therefore, restoring force does not depend on amplitude instead by being on displacement​.