A modern grand - prix racing car of mass m is travelling on a flat track in a circular arc of radius R with a speed v. If the coefficient of static friction between the tyres and the track is μs' then the magnitude of negative lift FL acting downwards on the car is: (Assume forces on the four tyres are identical and g = acceleration due to gravity)
1
\(m\left( {\frac{{{v^2}}}{{{\mu _s}R}} + g} \right)\)
2
\(m\left( {g-\frac{{{v^2}}}{{{\mu _s}R}} } \right)\)
3
\(m\left( {\frac{{{v^2}}}{{{\mu _s}R}} - g} \right)\)
4
\(-m\left( {g+\frac{{{v^2}}}{{{\mu _s}R}} } \right)\)