SOLUTION: The braking distance (in feet) of a car going V mph is given by {{{d(V)=v^2/20+v}}} V is greater or equal to zero. how fast would a car have been traveling for a braking distanc

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Question 331439: The braking distance (in feet) of a car going V mph is given by d%28V%29=v%5E2%2F20%2Bv V is greater or equal to zero.
how fast would a car have been traveling for a braking distance of 150ft? round to the nearest mile per hour
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!












Use the quadratic formula since it doesn't factor neatly. Also, toss out the negative root since is specified.

John

My calculator said it, I believe it, that settles it