Question

If an object is moving with a constant acceleration, then it could NOT be _____.

A.changing its direction
B.moving in a straight line
C.moving at a constant speed
D.moving at a constant velocity

Answer 1

D. moving at constant velocity

Explanation:

Acceleration is change of velocity over change in time.

if velocity is constant the change in velocity at any given time will come out to be 0.

hence, it is impossible to have constant acceleration when an object is moving at constant velocity. all other cases are possible according to the properties of acceleration and velocity wherein direction change is possible and a constant speed too is possible.