You know nothing
Repeating the same crap wont help you.
Try actually answering rather than deflecting.
It's not harder. You're just pushing your car harder because you stupidly brake on downward incline and accelerate on the up incline.
We aren't talking about going down an incline first.
We are talking about going up vs going level vs going down.
Regardless, this just further demonstrates the insanity of your position.
Without gravity there wouldn't be a need to break when going down hill. But instead you speed up if you don't break.
Likewise, without gravity, you shouldn't need to have gone down a hill to be able to coast up the next one.
Now stop with the pathetic deflections and try actually addressing the issue.
We can even make it simpler for you.
From a standing start:
If the car is on level ground it just sits there unless you provide it is on and trying to move forwards.
If the car is pointing down a hill, unless a break is applied, it will roll forwards, picking up speed.
If the car is pointing up a hill, unless a break is applied, it will roll backwards. In order to make it go up the hill a greater force needs to be applied than the case with level ground.
From a start at some velocity on a fixed incline.
If the car is level, you need to apply a small amount of force to keep the car going. If you put the car in neutral, and don't apply breaks, it will slowly come to a stop after a considerable distance.
If the car is going down a hill, without applying a break it will accelerate, going faster and faster.
If the car is going up a hill, without applying a break or the accelerator, it will very quickly come to a stop. You need to apply a significant force to keep it moving at the same speed.
Without gravity, there is no reason for any of this.
Now care to address the issue, or can you only spout more dishonest BS?