Eli5 why electric cars don’t have smthn like reverse thrust while braking (wheels spin backwards in hard braking situation)

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Eli5 why electric cars don’t have smthn like reverse thrust while braking (wheels spin backwards in hard braking situation)

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Anonymous 0 Comments

What does it matter whether the car is electric or fuel powered in this case?

One way to think about why it wouldn’t work is: you’ve seen eg racing cars or motorbikes spin the rear wheels while keeping their front brakes on, right? This means that the brakes acting on stationary tyres are stronger than the motor spinning them on road surface.

The reason no cars do this is because things stick together better when they’re not moving past each other than when they’re sliding (in technical terms, the coefficient of static friction is usually higher than the coefficient of dynamic friction). For example, if you have something just staying put on a slope, then give it a nudge, it will keep sliding. This means that spinning the wheels backwards would increase the braking distance, and as an added bonus destroy the tyres.

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