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The harmonic mean captures the fuel economy of driving each car in the fleet for the same number of miles, while the arithmetic mean captures the fuel economy of driving each car using the same amount of gas (i.e., the 13 mpg vehicle would travel 13 miles (21 km) with one gallon while the 100 mpg vehicle would travel 100 miles).
The 1952 Porsche 356 was the first car to use a transmission with synchromesh on all forward gears. [ 7 ] [ 8 ] In the early 1950s, most cars only had synchromesh for the shift from third gear to second gear (drivers' manuals in vehicles suggested that if the driver needed to shift from second to first, it was best to come to a complete stop ...
The car's momentum acts at its centre of mass to tilt the car forward or backward, respectively during braking and acceleration. Since it is only the downward force that changes and not the location of the centre of mass, the effect on over/under steer is opposite to that of an actual change in the centre of mass.
The term carry trade, without further modification, refers to currency carry trade: investors borrow low-yielding currencies and lend (invest in) high-yielding currencies. It is thought to correlate with global financial and exchange rate stability and retracts in use during global liquidity shortages, [ 3 ] but the carry trade is often blamed ...
Kelley Blue Book says that the average American would need to work 37.4 weeks to pay off the average new car sale price. That's better affordability than America has seen since August 2021.
The power needed to propel a car at any given set of conditions and speed is straightforward to calculate, based primarily on the total weight and the vehicle's speed. These produce two primary forces slowing the car: rolling resistance and air drag. The former varies roughly with the speed of the vehicle, while the latter varies with the ...
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The 1962 Sisu KB-112/117 was the first European serial produced truck with a hydraulically tiltable cabin, enabling easy access to the engine. A Mack F series truck. In Class 8 tractors (using the US designation), the cab-over design allows the vehicle's wheelbase to be shorter than in the conventional arrangement, wherein the engine is placed in front of the cab, covered by a horizontal or ...