1.

If ‘k’ is coefficient of air resistance, ‘A’ is frontal area projected by the vehicle in square metres and ‘V’ is vehicle speed(in km/h) then the expession for air resistance ‘A.R’ on the vehicle is _________(a) A.R = k*A*V^2(b) A.R = k*A*V^3(c) A.R = 2k*A*V(d) A.R = k*A*VThis question was posed to me in exam.Question is from Performance of an Automobile in portion Introduction of Automobile Engineering

Answer»

The correct ANSWER is (a) A.R = k*A*V^2

Explanation: The correct expression for AIR RESISTANCE is A.R = k*A*V^2.



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