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Centripetal and Centrifugal Acceleration and Force - Forces due to circular motion and centripetal / centrifugal acceleration.Old Car Cost Calculator - Calculate and compare the costs between owning a new vs. Car Fuel Consumption - liter/100 km - Calculate fuel consumption in liter per km - consumption chart and calculator.Car Acceleration - Car acceleration calculator.Car - Traction Force - Adhesion and tractive force between car wheel and surface.Car - Required Power and Torque - Power, torque, efficiency and wheel force acting on a car.Bodies Moving on Inclined Planes - Acting Forces - Required forces to move bodies up inclined planes.Mechanics - Forces, acceleration, displacement, vectors, motion, momentum, energy of objects and more.Dynamics - Motion - velocity and acceleration, forces and torques.The rolling resistance for one wheel can be calculated as compare car rolling resistance with car air resistance (drag).The rolling resistance for all four wheels in a car with total weight 1500 kg on asphalt with rolling friction coefficient 0.03 can be estimated with the generic equation 1 as Increasing the pressure to 3.5 bar reduces the rolling resitance coefficient toĬ = 0.005 + (1 / (3.5 bar)) (0.01 + 0.0095 ((90 km/h) / 100) 2)Įxample - The Rolling Resistance of a Car on Asphalt The standard wheel pressure in a Tesla Model 3 is 2.9 bar (42 psi). V = velocity (km/h) Example - Wheel Pressure & Rolling Resistance Coefficient The rolling coefficients for air filled tires on dry roads can be estimatedĬ = 0.005 + (1 / p) (0.01 + 0.0095 (v / 100) 2) (3) Ordinary car tires on concrete, new asphalt, cobbles small newĬar tire on solid sand, gravel loose worn, soil medium hard