Can someone please help me with this physics problem?

Posted on 2015-10-29 06:58:00 in Physics by RAY

The government claims that you save gasoline by driving slower. If you are planning a trip across the US,
is there really a substantial saving of gasoline if you travel 35 mph instead of 70 mph? Explain your answer
to this question. Your explanation should include:

(a) a brief statement of each of Newton’s three laws and how each is relevant to this question;
(b) a clear explanation of the most relevant forces for this question;
(c) a clear explanation of how the forces relate to gasoline consumption;
(d) a quantitative estimate of the relative gasoline consumption (for 35 mph vs. 70 mph).

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