physics
posted by ryan .
Dragrace tires in contact with an asphalt surface have a very high coefficient of static fric.tion. Assuming a constant acceleration and no slipping of tires, estimate the coefficient of static friction needed for a drag racer to cover 2.1 km in 8 s, starting from rest.
Coefficient of static friction =

physics 
Damon
d = (1/2) a t^2
solve for a
F = m a = mu m g
so
mu = a/g
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