Which statements about friction-assisted circular motion are correct?

Select all that apply

• Option A

  On a flat circular road, static friction can provide the required centripetal force

• Option B

  On a horizontal rotating disc with constant angular speed, static friction on a non-slipping coin can act radially inward

• Option C

  On a banked road, friction always acts down the slope

• Option D

  In a Well of Death, the normal reaction can provide centripetal force while friction provides vertical support