A train of length L moves at speed v. Which crossing-time statements are correct?

Select all that apply

• Option A

  It crosses a stationary pole in L/v

• Option B

  It crosses a platform of length d in (L+d)/v

• Option C

  It completely crosses an equal-length train moving oppositely at speed v in L/v

• Option D

  It completely crosses an equal-length train moving in the same direction at speed v/2 in 4L/v