this is an interesting thought i had but i dont have the mathskills to calculate the answer so I thought I could ask for your help. So I want to drive my car up to space for example , imagine I have built a ramp on which the acceleration goes in the opposite direction of the rotation of earth, (to gain more tangential velocity ) Now here are the variables, the ramp reaches certain heigth X the car is traveling at certain speed up the ramp , how high the ramp and how fast the speed of the car or object traveling would need to be in order to achieve a speed which would be high enough to break away from earths gravity and adding the speed + the tangential velocity of earth so that the car could fly off into space without being dragged back down? I guess the angle of the ramp would also have to be considered. This is surely not a homework question even though at some points it sounds similar to one. thanks for interest.