Physics for IGCSE & O level - Forces And Motion (Section 11 - No. 20)
If an object is experiencing a net force, what must also be true?
The object's speed is constant.
The object's direction is changing.
The object's acceleration is zero.
The object's velocity is constant.
הֶסבֵּר
A net force always causes acceleration, which includes changes in speed and/or direction.