Question :
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
1. A.R = k*A*V^2
2. A.R = k*A*V^3
3. A.R = 2k*A*V
4. A.R = k*A*V
Answer :
1 - A.R = k*A*V^2
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