If an object is moving at a distant speed in one direction, what is needed to change its speed or direction

Forces affect how objects move. They may cause motion; they may also slow, stop, or change the direction of motion of an object that is already moving. Since force cause changes in the speed or direction of an object, we can say that forces cause changes in velocity. Remember that acceleration is a change in velocity.

the components of a vector are the parts of the vectors that are to each other.

b perpendicular