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Question
How many kilometers per liter will a car obtain if its engine is 25% efficient and it encounters
an average retarding force of 500 N at highway speed? Assume that the energy content of gasoline
is 40 MJ/liter.
(A) 10 kmpl
(B) 12 kmpl (C) 20 kmp! (D) 22 kmpl
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Solution
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