According to Newton's laws of motion, which statement is false?

The statement about a body in motion coming to rest unless acted upon by an external unbalanced force is incorrect according to Newton's laws of motion. Specifically, Newton's first law of motion states that an object in motion will continue to be in motion with the same speed and in the same direction unless acted upon by an external unbalanced force. This means that if no net external force is acting on a moving body, it will not come to rest by itself; rather, it will maintain its state of motion indefinitely.

In contrast, the other statements accurately reflect Newton's laws. The first statement is a correct reflection of the first law, which speaks to the inertia of a body at rest. The second statement aligns with Newton's second law, indicating the relationship between force, mass, and acceleration. The third statement is an accurate representation of Newton's third law, which describes the principle of action and reaction. Therefore, the misinterpretation of the motion of a body highlights why the statement regarding a body in motion coming to rest is the false one in this context.