How fast was a driver going if the car left skid marks that were 80 feet long on dry concrete? (The coefficient of friction is 1.02)?

Question

Timmyspu · Answer

So what is the first thing we have to do here?

hhanan · Answer

divide

Adovbush · Answer

do you have answer choices

hhanan · Answer

no

AZ · Answer

I found this formula

$\text{S} = \sqrt{30\text{df}}$

S is the speed the car was traveling (in mph).
d is the distance the car skidded (in feet).
f is a special number (called the coefficient of friction) that depends on the road surface and road conditions

AZ · Answer

so plug in d = 80 and f = 1.02 and solve for S

AZ · Answer

(found the formula here, for future reference https://www.mathed.page/attc/lessons/ch.09/9.B-skidding-distance.pdf)

TETSXPREME · Answer

Close this if you got the answer Please :)