When multiple forces are acting on an object at rest and these forces are opposed but unbalanced, the effect on the object will be that it will accelerate in the direction of the net force. More specifically:
- Motion will be either created, stopped, or changed. This is the correct response. The unbalanced forces will result in a net force that can initiate motion if the object is at rest.
The other statements provided do not accurately describe the effect of unbalanced forces on an object:
- The object will not produce a humming sound due to unbalanced forces.
- While the acceleration of the object may increase as it responds to the net force, it is the object’s motion that is most significantly altered.
- The mass of the object does not decrease due to the application of unbalanced forces.
In summary, an object at rest with unbalanced opposing forces will experience a net force that will change its state of motion.