# Physics

posted 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?!

1. Cocoa

You would first figure out 40% of 15,000 to get how much of the energy the car uses. Then divide that number by 500, and that's your answer. Get a second opinion before you take mine too.

2. Elizabeth

Okay thanks. I'll check it to make sure and see what I get.

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