A ball is thrown downward from a height with initial speed u. Which statements are correct, taking downward as positive?

Select all that apply

• Option A

  Its displacement after time t is ut + (1/2)gt².

• Option B

  Its speed after falling distance h is √(u² + 2gh).

• Option C

  Its acceleration depends on its speed.

• Option D

  If another ball is simply dropped from the same point at the same instant, the thrown ball always remains below it for t > 0.