SOLUTION: The formula r=2√5L can be used to approximate the speed r, in miles per hour, of a car that's left skid marks length L, in feet. How far will a car skid at 20 mph?
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-> SOLUTION: The formula r=2√5L can be used to approximate the speed r, in miles per hour, of a car that's left skid marks length L, in feet. How far will a car skid at 20 mph?
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Question 472793: The formula r=2√5L can be used to approximate the speed r, in miles per hour, of a car that's left skid marks length L, in feet. How far will a car skid at 20 mph? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! The formula r=2√5L can be used to approximate the speed r, in miles per hour,
of a car that's left skid marks length L, in feet.
How far will a car skid at 20 mph?
:
Replace r with 20 in the given formula = 20
Square both sides
4(5L) = 20^2
20L = 400
L =
L = 20 mph with 20' skid mark
