[saagarjha]

Assuming your Tesla is around 2000 kg and traveling at 30 meters/s, it's got about 900,000 J of kinetic energy. Stopping in 10s is some serious power that you'd need to throw off.

[fulafel]

All of yhe 90 kW doesn't need to be radiated in real time though as it's ok for the brake elements to heat up.