A particle executes SHM between -Xₘ and +Xₘ. Its velocity V(t) is partially shown in the figure. Points A and B correspond to times t₁ and t₂. Which statements are correct?

Select all that apply

• Option A

  At time t₁, the particle is moving towards +Xₘ.

• Option B

  At time t₁, its speed is decreasing.

• Option C

  At time t₂, its position lies between -Xₘ and O.

• Option D

  The phase difference Δφ between A and B satisfies 90° < Δφ < 180°.