friction
a ramp offsets the normal force of an object which allows gravity to have an x component relative to the object. the greater the incline the greater this effect is. A car attempting to go up a ramp will be slowed by this effect, and a car attempting to go down a ramp will be sped up by this effect.
A ramp exerts no force, just gravity.
"If the ramp is steeper than the ball will roll faster" can be observed during experiments. "Friction slowed the ball down" and "Gravity caused the ball's motion" are both conjectures (guesses).
The gravitational force is.
The heavy the crayon, it will roll down but it needs force to move it back up
The cart stays where it is and doesn't move.
Julie came sliding down the ramp and jumped to her feet when she reached the bottom of the ramp.
Gravity
It has 3
The weight of the car will cause the force of gravity to push it down with seemingly more force than the lighter car. And so this would make the car go faster down a slanted surface, which is the ramp.
gravity pulls it down....but of course inertia
The applied force will depend on the required force, and the angle to the ramp (or the horizontal) at which the force is applied.