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Homework Help: Efficiency homework

  1. Mar 30, 2009 #1
    A 10%-efficient car engine accelerates the 1700 kg car from rest to 18 m/s.

    How much energy is transferred to the engine by burning gasoline?

    What should be my first step in attempting this problem?
  2. jcsd
  3. Mar 30, 2009 #2


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    Homework Helper

    Re: efficiency

    Ask yourself these questions:
    1)What is the definition of efficiency?
    2) If the car starts from rest and then to 18m/s, what kind of energy will it possess?
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