Automotive Physics Article Running in 2nd Gear?

The article itself discusses the science behind the ever-changing automobile industry. It is organized into two main categories, Performance and Economy, both of which contain various subcategories in order to further organize the material. The performance section was, in my opinion, the better of the two sections, as it went into more detail on the factual aspects of each section rather than to dwell on the authors own opinions and assumptions. ‘Performance’ was broken down into four parts: Speed, Drag force, Horsepower, and Handling. The auth

or does a good job explaining the naturally constant proportion of speed to drag force. Sill describes that as the car moves faster, the drag force increases, and because the drag force can not be easily reduced the cars, therefore, tend to max out at 200mph. But again, Sill leaves the paragraph undeveloped. He brings up other factors that affect speed but fails to even touch on what they are about. Sill, in his speed section, talks about drag and horsepower, which each have their own sections, instead of discussing the other factors he listed, such as torque and aerodynamic lift.

This theme of underdeveloped ideas is present throughout the rest of the article as well. In the Economy section, under “drag force at low speeds”, Sill discusses lowering the friction coefficient, though in the speed section he claims “the density of air, and the coefficient of friction are set, and do not change much”, but he does not say how the friction coefficient can be altered to decrease drag force. I also think it would have been useful to the reader if he had mentioned some of the newer materials used in cars to make them lighter, as well as the older ones they replaced; in both the engine and the car body itself. Again in the conclusion he brings up interesting points but he leaves us wanting for more, he says the automotive industry is

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