Define and explain restoring force in case of an oscillating body

cbse
oscillations

#1

The force responsible for maintaining the SHM is called restoring force. This force is directly proportional to negative of displacement.
e.g. Fα -x = F = -kx
k is called force constant. Also, F '= - ${{mω}^{2}}$ for SHM. Therefore, k = ${{mω}^{2}}$