Question

What do the arrows represent in projectile motion when an object is launched why is the vertical arrow longer?

I think they are components but could they also be described as vectors?
Caleb
You are correct the arrow in projectile motion represent the components of the force in the vertical direction which is the y component of force and the horizontal arrow represents the x component of force. They are also referred to as the vector components of a force. Remember Force is a vector which means it can be broken into vector components.