So a car moves, because the wheels exert a force on the ground which exert an opposite force back on the wheels causing it to move forward. The car then exerts this force on the air and the air back onto the car. Shouldn’t the resulting force on the car be 0 Newton then? Because the force the ground exerts on the car is the same as the force the air exerts on the car, thus cancelling each ofher out?
In: 0
Air resistance increases the pressure needed to move forward. This is actually why you use less gas going 55 than you do at 70 even though it takes longer to get where you are going. The faster you go the more the air pushes back against you. Eventually if kept pushing speed you would get to a point where the engine cannot push any faster than the wind resistance built up, just like gravity reaches a terminal velocity because it can no longer overcome the air resistance.
Latest Answers