Final answer:
According to Newton's 2nd Law, acceleration is caused by the net force acting on an object, while inertia resists acceleration.
Step-by-step explanation:
According to Newton's 2nd Law, acceleration is caused by the net force acting on an object. The formula for Newton's 2nd Law is F = ma, where F represents the net force, m represents the mass of the object, and a represents the acceleration. So, the greater the net force on an object, the greater the acceleration.
On the other hand, inertia, or the tendency of an object to resist changes in its motion, is what resists acceleration. Inertia is related to an object's mass. The more massive an object is, the greater its inertia and the more it resists changes in its motion.
For example, if you push a small ball and a large ball with the same force, the smaller ball will experience a greater acceleration because it has less mass, while the larger ball will experience a smaller acceleration due to its greater mass and greater inertia.
Learn more about Newton's 2nd Law