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) [17 Mar 2021 Shift 1]

Correct Answer is : m(v2µsR−g)

JEE Main 17 March 2021 Shift 1 Solved Paper

Section: Physics

Question : 9 of 90

Marks: +1, -0

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)

[17 Mar 2021 Shift 1]

m(‌
v2
µsR
+g)
m(‌
v2
µsR
−g)
m(g−‌
v2
µsR
)
−m(g+‌
v2
µsR
)

Validate

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