An object rests on a horizontal frictionless surface.A net horizontal force of magnitude F is applied.This force produces an acceleration:
A)only if F is larger than the weight of the object
B)only while the object suddenly changes from rest to motion
C)always
D)only if the inertia of the object decreases
E)only if F is increasing

Question

Quizplus · Accepted Answer

According to Newton's second law, F=ma, where F is the net force acting on an object, m is its mass, and a is acceleration. Since there is no friction, there is no opposing force, and so the net force is equal to the applied force (F). As a result, the object will always experience acceleration, regardless of its weight or initial state of motion.

An Object Rests on a Horizontal Frictionless Surface