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 $\mu$s, 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)

Question

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 $\mu$_s, then the magnitude of negative lift F_L acting downwards on the car is : (Assume forces on the four tyres are identical and g = acceleration due to gravity)

$m\left( {g - {{{v^2}} \over {{\mu _s}R}}} \right)$

$ - m\left( {g + {{{v^2}} \over {{\mu _s}R}}} \right)$

$m\left( {{{{v^2}} \over {{\mu _s}R}} - g} \right)$

$m\left( {{{{v^2}} \over {{\mu _s}R}} + g} \right)$

Solution

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