A boulder following a straight-line path at constant velocity has
A)a net force acting upon it in the direction of motion.
B)zero acceleration.
C)no forces acting on it.
D)none of the above

Question

Quizplus · Accepted Answer

Since the boulder is moving with constant velocity, it means that it has zero acceleration. According to Newton's second law, a net force is required to cause acceleration, therefore, there is no net force acting upon the boulder. Hence, the correct choice is B) zero acceleration.

A Boulder Following a Straight-Line Path at Constant Velocity Has