Physics
Grade-9
Easy

Question

Force acting in simple harmonic motion is always:

  1. Directly proportional to the square of the displacement
  2. Inversely proportional to the displacement
  3. Inversely proportional to the square of the displacement
  4. Directly proportional to the displacement

hintHint:

, F = −kx,

The correct answer is: Directly proportional to the displacement


    • The force responsible for the motion is always directed toward the equilibrium position and is directly proportional to the distance from it. That is, F = −kx, where F is the force, x is the displacement, and k is a constant. This relation is called Hooke's law.
    • So Directly proportional to the displacement

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