Reply to thread

Message: <blockquote data-quote="Wally World" data-source="post: 461871" data-attributes="member: 8258">Wonder who lobbied and greased up the politicians to get this speed increase? Maybe the extra gas taxes on the extra fuel burned was a big incentive!It takes significantly more energy to go from 75 mph to 80 mph due to the physics of <a href="https://www.google.com/search?sca_esv=36d67373c37c5fec&cs=0&sxsrf=AE3TifM0WRykUSMM_vGmNMZyrzrSI_z_ow%3A1754107635860&q=wind+resistance&sa=X&ved=2ahUKEwiy-P-ToOuOAxWGKkQIHQE1GE4QxccNegQIAhAC&mstk=AUtExfBMkA32F-8uQ0rV7S-uMsd1kpza57Pp8PAMcsQa7DXzn1diKMMZTkGo4syn-kXUhMVAwGwcBrZbTi9p2lPh14n0ywNq4ArDCSQWB785J8Wz6i5wF1I4nXozvgPPni8wdcrcSfg-PQaWuQg9g4m2JoeWemr7d-h7pFnU1fHMkQS0Vg8ISg5uqHeerltpzIB5nL2u4IzF1xxFyF0WH2Stapq6BQ&csui=3" target="_blank">wind resistance</a>. As speed increases, the force of air resistance grows exponentially. This means that even a small increase in speed, like 5 mph, from 75 to 80, requires a disproportionately larger amount of energy to overcome that resistance. Here's why:<ul> <li data-xf-list-type="ul">Wind Resistance: The faster you travel, the more air you have to push out of the way. This resistance increases with the square of the speed. So, going from 75 to 80 mph significantly increases the force of the air pushing against the vehicle. </li> <li data-xf-list-type="ul">Engine Efficiency: While engines are most efficient at lower RPMs and in their highest gear, at higher speeds, the engine needs to work harder to overcome increased wind resistance and friction, leading to higher fuel consumption. </li> <li data-xf-list-type="ul">Overall Energy Consumption: Studies and real-world driving data show that each 5 mph increase in speed above 50 mph results in a noticeable decrease in fuel economy. The decrease is more pronounced at higher speeds, meaning the jump from 75 to 80 mph will have a greater impact on energy consumption than a similar jump at lower speeds. </li> </ul>For example, a <a href="https://www.energy.gov/eere/vehicles/fact-982-june-19-2017-slow-down-save-fuel-fuel-economy-decreases-about-14-when" target="_blank">Department of Energy (.gov) study</a> showed that fuel economy decreases by an average of 14% when going from 60 to 70 mph, and another 15.4% when going from 70 to 80 mph. Therefore, while it might seem like a small speed increase, the energy required to go from 75 mph to 80 mph is significantly higher due to the physics of wind resistance and the impact on engine efficiency.</blockquote>

Verification: What is the most common fish caught on this site?

Reply to thread

Recent Posts

Friends of NDA