How does unbalance forces affect the motion of an object? A. It cause no changes in speed B. It can cause no changes in direction C. It can stop the object from moving D. It can cause resting object to move.
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Answer:
D
Explanation:
Unbalanced forces are not equal, and they always cause the motion of an object to change the speed and/or direction that it is moving. When two unbalanced forces are exerted in opposite directions, their combined force is equal to the difference between the two forces.