A 2 kg mass is dropped from rest from the roof of a very tall building. Ignoring air resistance, which of the following is the most appropriate choice?
A. The speed of the object increases until it reaches some critical speed and then moves with a constant speed.
B. The velocity of the objects remains constant until it hits the ground.
C. The speed of the object remains constant until it hits the ground
OD. The speed of the object continuously increases by the same amount every second until it hits the ground.