I hate word problems, I just go brain dead...can anyone help?
On a certain type of street surface, the equation d = 0.055v2 can be used to approximate the distance d, in feet,a car traveling v miles per hour will slide when its brakes are applied. After applying the breakes, the driver of a car involved in an accident skidded 40 ft. Did the traffic officer ivestigating the accident issue the driver a ticket for speeding if the speed limit was 30 MPH?

Question

I hate word problems, I just go brain dead...can anyone help? 
On a certain type of street surface, the equation d = 0.055v2 can be used to approximate the distance d, in feet,a  car traveling v miles per hour will slide when its brakes are applied. After applying the breakes, the driver of a car involved in an accident skidded 40 ft. Did the traffic officer ivestigating the accident issue the driver a ticket for speeding if the speed limit was 30 MPH?

anonymous · Answer

Here, you know that d is 40.
$$40 = 0.055v^2$$
Can you proceed from here?