An object is moving with a constant velocity.Which statement(s)MUST be true?
A)The net force on the object is zero.
B)A small net force is acting on the object,in the direction of motion.
C)No forces are acting on the object.
D)Two of the above statements are true.

Question

Quizplus · Accepted Answer

When an object is moving with a constant velocity, it means that there is no acceleration. According to the second law of motion, acceleration is directly proportional to the net force acting on the object. Therefore, if there is no acceleration, it means that there is no net force acting on the object. Hence, statement A, "The net force on the object is zero", must be true. Statements B and C are not necessarily true in this case.

An Object Is Moving with a Constant Velocity