A modern grand - prix racing car of mass m is traveling on a flat track in a circular arc of radius R with a speed v. If the coefficient of static between the tyres and the track is µs, then the magnitude of negative lift F acting downwards on the car is : (Assume forces on the four tyres are identical and g = acceleration due to gravity)

Option 1 -

m (v² / µsR - g)

Option 2 -

-m (g + v² / µsR)

Option 3 -

m (g - v² / µsR)

Option 4 -

m (v² / µsR + g)

3 Views | Posted a month ago

Asked by Shiksha User

1 Answer

Answered by

Vishal Baghel | Contributor-Level 10

a month ago

Correct Option - 1

Detailed Solution:

N = mg - F_L

f_s = mv²/R ≤ μsN = μs (mg - F_L)

F_L = m (v²/μsR - g)

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