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?

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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?

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Anonymous 0 Comments

Trains take a mile to stop. Your steel on steel brakes will stop in a mile. Same thing except the train doesn’t have anything in front of it. You have several cars, trucks and a bus full of nuns in front of you.

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