SOLUTION: The formula r=2sqrt(5l) can be used to approximate the speed r, in miles per hour, of a car that has left skid marks of length l, in feet. How far will a car skid at 60 mph?
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Question 467838: The formula r=2sqrt(5l) can be used to approximate the speed r, in miles per hour, of a car that has left skid marks of length l, in feet. How far will a car skid at 60 mph? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! The formula r=2sqrt(5l) can be used to approximate the speed r, in miles per
hour, of a car that has left skid marks of length l, in feet.
How far will a car skid at 60 mph?
:
Write it: = 60
divide both sides by 2 = 30
square both sides
5L = 30^2
5L = 900
L =
L = 180 ft skid marks
:
:
Check on a calc: enter 2*
