The acceleration of a Tesla that maintains a constant velocity of 120 km/h over a time of one-half hour is
A) 60 km/h.
B) 120 km/h.
C) 240 km/h.
D) zero because of no change in velocity.
Question 2
A motor scooter undergoes acceleration when it
A) gains speed.
B) decreases speed.
C) changes direction.
D) all of the above