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1. Theoretical notions
1.1 Work, power
Work, power, torque and speed are the basic quantities linked together. Let's imagine a car: engine-gearbox-wheels-body. This car is the seat of several forces (figure 1 ):
propulsion forces at the tire-road contact ;
resisting forces: aerodynamic, tire contact friction, road gradient (forces explained in paragraph 1.5.1 ...
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Theoretical notions