SOLUTION: Using the formula r = 2sqrt (5L), how far will a car skid at 55 mph? at 90 mph?

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Question 170462This question is from textbook Introductory Algebra
: Using the formula r = 2sqrt (5L), how far will a car skid at 55 mph? at 90 mph? This question is from textbook Introductory Algebra

Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
r=55
:
55=2sqrt%285L%29--->square both sides
55%5E2=4%285L%29
3025=20L
highlight%28L=151.25%29length of skid
:
r=90
:
90=2sqrt%285L%29--->square both sides
90%5E2=4%285L%29
8100=20L
highlight%28L=405%29 length of skid