Is a 300hp Engine Necessary for Driving Within Speed Limits?

[Sheneron]

Homework Statement

I am having some trouble coming up with an answer to a couple of conceptual problems.

1. A car salesman claims that a souped-up 300hp engine is a necessary option in a compact car, in place of the conventional 130hp engine. Suppose you intend to drive the car within speed limits <= 65 mph. How would you counter this sales pitch?

-Im not really sure what to say. The math could be done to show why it is unnecessary, but this is a conceptual questions so I don't suppose that would work.

2. Who first stated the work-kinetic energy theorem? Who showed that it is useful for solving many practical problems? Do some research to answer these questions.

-The research has already been did, and I can't find out either of these.

Any help would be appreciated.

 

[Sheneron]

Nevermind about the first one.

But does anyone know who first stated the work-kinetic energy theorem, and who showed its usefulness?

I have looked al ot of places but I am having no luck.

 

[Moetasim]

I understand the importance of critical thinking and evidence-based reasoning in addressing conceptual problems. In the first problem, it is important to consider the specific needs and usage of the car. While a 300hp engine may provide more power and speed, it may also lead to higher fuel consumption and maintenance costs. Additionally, driving within speed limits of 65 mph may not require such a powerful engine. Therefore, it is important to carefully evaluate the actual benefits and drawbacks of a souped-up engine before making a decision.

In regards to the second problem, it is essential to conduct thorough research and gather evidence to determine the origin of the work-kinetic energy theorem. This theorem was first stated by German scientist Hermann von Helmholtz in the 19th century. However, it was later refined and popularized by other scientists such as James Prescott Joule and Augustin-Louis Cauchy. It has since been widely used in practical applications, including in solving problems related to motion and energy in various fields of science and engineering.

In conclusion, when faced with conceptual problems, it is important to approach them with a critical and analytical mindset. This includes considering all relevant factors and evidence, and conducting thorough research to arrive at a well-informed solution.