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Efficiency homework

  • Thread starter spokorne
  • Start date
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?
 

rock.freak667

Homework Helper
6,230
31
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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