SOLUTION: The formula r=2√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 70 mph?

Question 629215: The formula r=2√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 70 mph?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,

  or    ( L in feet)

 r = 70mph   ⇒  ft 

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SOLUTION: The formula r=2&#8730;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 70 mph?

SOLUTION: The formula r=2√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 70 mph?