The Physics Behind Drag Racing – This is a big question that brings together a lot of what we’ve discussed in other HowStuffWorks posts about drag. And, apparently, there is an easy way to learn how much your car is worth.
In the article How Force, Power, Torque and Energy Work you learned about Newton’s second law, which we can also state if force (F) equals mass (m) times acceleration (a).
The Physics Behind Drag Racing
What this equation means is that the force applied to the car causes your car to accelerate. When you drive at a constant speed, the power generated in the engine is converted to the tires. Gravity acts in the opposite direction and is equal to the force the engine produces on the tires. Since these forces are equal and opposite, the net force on the car is zero, so the car has a constant …