Asked by Elizabeth

A 500 kg car has an engine that uses only 40% of the energy from the gasoline for motion. If there is 15,000J of potential energy stored in the gasoline, how fast an the car go on the gasoline?

I have no idea how to set this up. Any help?!
Answered by bobpursley
It is a silly problem, I guess it wants you to ignore road friction, change of elevation, and air friction. If we could do that, it would be very inexpensive to drive. One could drive from LAngeles to SanDiego for no cost.

15000*.4= 1/2 mass*velocity^2

solve for veloctiy
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