Question

plz help me alg 2 !!
what is the approximate stopping distance of a car traveling 45mph on a road with a drag factor of 0.5?
please show me method too !!

Answer 1

S = Speed, in miles per hour.
30 = A constant value used in this equation.
D = Skid Distance, in decimal feet and inches.
f = Drag factor for the road surface.
n = Braking efficiency as a percent.

S=sqrt(30Dfn)

assume n will be 1 (or 100%),

solve for D

hope this helps

http://www.harristechnical.com/articles/skidmarks.pdf