Assume a car is going 10 mph on an icy road. Does it really get better traction if driving in "Low" than in "Drive"? And if so, why? I don't understand the physics.
2007-11-24 09:57:16 · 2 answers · asked by Halbert 2 in Science & Mathematics ➔ Physics
Traction is another word for the friction of the tires with the road. If your foot is sensitive enough, you can use the available friction without exceeding the available friction in either gear. But if you exceed the available friction, your drive wheels (or one of them) spins.
A more sensitive foot is required when you're in low gear because the engine/transmission can deliver more torque to the axle in low. And when you deliver too much torque, you spin. In high gear it's easier to avoid spinning.
2007-11-24 13:43:49 · answer #1 · answered by sojsail 7 · 0⤊ 0⤋
The car is more likely to spin it's wheels in a low gear. To demonstrate get on a 10 speed bike and put it in high gear. Then see if you can spin the tire. Same priciple.
2007-11-24 10:02:25 · answer #2 · answered by 19G30 5 · 0⤊ 0⤋