
would a car have to burn to give it enough momentum to drive over a 3' high ramp?
( ,
Sat 17 Dec 2005, 2:45,
archived)

Assuming a car mass of 1000Kg
1000Kg * 9.81 N/Kg = 9810N
* 10cm = 981 Joules
Effeciency of a car engine = approx. 30%
- friction losses = approx 25%
981J * 4 = appx. 4KJ per car
* thousands and thousands of cars...
( ,
Sat 17 Dec 2005, 2:45,
archived)
1000Kg * 9.81 N/Kg = 9810N
* 10cm = 981 Joules
Effeciency of a car engine = approx. 30%
- friction losses = approx 25%
981J * 4 = appx. 4KJ per car
* thousands and thousands of cars...