contestada

a.
14. If an object moves in the same direction and at a constant speed for 4 hours, which of the following is true?

a. The object's speed changed during the 4 hours.

b. The object's speed and average speed were equal during the entire 4 hours.

c The object accelerated during the 4 hours.

d. The object decelerated during the 4 hours.

Respuesta :

B. The object's speed and average speed were equal during the entire 4 hours.  This is correct since the speed and average speed can't change if the object has a constant speed and the constant doesn't change.