Can anyone do the math and tell me how big that resistor would need to be? I’ve ... | Hacker News

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		Mistletoe on Dec 29, 2020 \| parent \| context \| favorite \| on: FAA issuing new rules to allow drones to fly over ... Can anyone do the math and tell me how big that resistor would need to be? I’ve always wondered how many watts are being dissipated by my brake pads and rotors when I stop.

saagarjha on Dec 29, 2020 [–]

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 on Dec 29, 2020 | [–]

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.

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