Answer :

Final answer:

Unbalanced forces change an object's motion because they are needed to cause acceleration and alter the direction of motion.


Explanation:

True, since the natural state of all objects is to be at rest. Eventually, all objects will be at rest, so to keep an object moving, a force needs to be applied.

Changes in velocity are detectable and are evidence of unbalanced forces acting on an object.

When two unequal forces act on a body, the body will not move in the direction of the weaker force. This is because an unbalanced force is needed to change an object's motion.


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