An unbalanced force moves an object from the rest or a constant, straight-line moving object. Option D is correct.
Unbalanced Force:
- When the force acting in different directions on the object is not equal then the force is called unequal.
- If the force net force on the object is equal to zero then the object will either be on rest or move with constant speed in a straight line.
- Assume, if the force acting on the object is unbalanced means the force in the right direction is more than the other direction, the object will move in the right direction.
Therefore, an unbalanced force moves an object from the rest or a constant, straight-line moving object.
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