eli5 Why do trains with steel wheels have traction on steel rails, but if your brakes on your car are used up and become steel on steel they dont work anymore?
In: 1231
They work just fine, other than the unsettling grinding noises. They wear out quickly and will wear through the piston and drain the brake fluid rapidly. Which will then quit working. Losing too much brake fluid for the hydraulic system to continue functioning is the real danger.
Every other content talking about friction coefficients and drag coefficients etc are nonsense. These people must have no experience driving a car with brake pads that are worn through.
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