For a particle executing simple harmonic motion, which of the following statements is not correct

For a particle executing simple harmonic motion, which of the following statements is correct? (1) The total energy of the particle always remains the same (2) The restoring force is maximum at the extreme positions (3) The acceleration of the particle is maximum at the equilibrium position (4) The acceleration of the particle is maximum at the equilibrium position

The following figure shows displacement versus time curve for a particle executing simple harmonic motion : Which one of the following statements is correct?

For a particle executing simple harmonic motion, the acceleration is -

While a particle executes linear simple harmonic motion

While a particle executes linear simple harmonic motion

If a body is executing simple harmonic motion, then

The velocity of a particle executing simple harmonic motion is

Write the equation of motion of a particle executing simple harmonic motion, whose displacement is maximum at t = 0.