If we know an object is moving at constant velocity,we may assume:
A)the net force acting on the object is zero.
B)there are no forces acting on the object.
C)the object is accelerating.
D)the object is losing mass.

Question

Quizplus · Accepted Answer

If an object is moving at constant velocity, its acceleration is zero (since acceleration is defined as the rate of change of velocity). According to Newton's second law of motion, the net force acting on an object is proportional to its acceleration. Therefore, if the object is moving at constant velocity (i.e. zero acceleration), the net force acting on it must be zero. So, choice A is the best answer.

If We Know an Object Is Moving at Constant Velocity,we