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15 votes
3. Why is a train so hard to stop even when it is going
slowly?

User Ddekany
by
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1 Answer

7 votes

Answer:

For trains the wheels and the rail are both steel, and the steel-steel friction coefficient is around 0.25. So the stopping time and distance will, at best, be three to four times greater than a car.

Step-by-step explanation:

User Uli Bethke
by
3.0k points