- #1
thetexan
- 266
- 11
Here's the scenario...
I'm driving down the highway at 75 mph and not paying attention. I suddenly see a 55 mph speed limit sign and hit the brakes to slow down. I decelerate from 75 to 55 in 3 seconds. The car weighs 4700 lbs and has 4 disc brakes.
Now assuming the only factor is the friction of the brakes (no wind resistance, etc.) do I have enough info to calculate how much energy was dissipated by the 4 brakes and determine if that was all in heat and if so how much heat? If not precisely, a good estimate?
tex
I'm driving down the highway at 75 mph and not paying attention. I suddenly see a 55 mph speed limit sign and hit the brakes to slow down. I decelerate from 75 to 55 in 3 seconds. The car weighs 4700 lbs and has 4 disc brakes.
Now assuming the only factor is the friction of the brakes (no wind resistance, etc.) do I have enough info to calculate how much energy was dissipated by the 4 brakes and determine if that was all in heat and if so how much heat? If not precisely, a good estimate?
tex