Two balls of mass M and 2M are thrown horizontally with the same initial velocity v0 from top of a tall tower and experience a drag force of –kv(k > 0), where v is the instantaneous velocity. Then
(A) the heavier ball will hit the ground further away than the lighter ball
(B) the heavier ball will hit the ground closer than the lighter ball
(C) both balls will hit the ground at the same point
(D) both balls will hit the ground at the same time
