TameraWhittenburg51 TameraWhittenburg51

05-03-2014
Physics

Answered

What’s the efficiency of a car that uses 400,000 J of energy from gasoline to make 48,000 J of kinetic

energy?

Verified Answer :

Anonymous Anonymous

05-03-2014

To calculate efficiency you should divide output by input energy.

The engine produces 48000 j energy from 400000 j given energy from gasoline.

48 000/400 000 = 48/400 = 12/100 = 12%

Efficiency of this engine is 12%

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