Answer :
b) The motion will be either created, stopped, or changed.
An unbalanced force is said to act on an object if the sum of all forces acting on it is non-zero. This means that some force is acting on the object, so the object experiences an acceleration equal to F = ma.
Force Imbalance:
- Generates motion of a stationary object (acceleration is +ve as the object changes its velocity from 0 to some value while it is stationary).
- Stop the moving object (because the object changes velocity from some value to zero and stops, i.e. -ve acceleration).
- Change the speed of a moving object (there is an acceleration due to the change in speed).
- Changes the direction of movement of the object (there is an acceleration due to the direction change).
Thus, there will be some change in motion in the object if multiple forces applied are unbalanced.
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