inertial. There is no net force on the box. The box remains motionless with respect to his frame of reference. His frame of reference is inertial. The box accelerates forward with respect to his frame of reference. There is nonzero net force on the box.

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A: Solution:

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: