The following formula can be used to estimate the speed, r, in miles per hour, of a car that has left a skid mark of length, L, in feet:
1. What is the estimated speed of a car that left a skid mark of 110 feet? Round your answer to the nearest mph.
2 .Solve the formula in 1. above for the variable L. This means use algebra, and isolate the L variable.
3. Using your equation derived in 2. above, how far would a car skid if it were traveling 95 mph? Round your answer to the nearest foot
4. It was determined that the proper length, L, of letters painted on pavement is a function of how far the vehicle will be from the letters, d, and the height of the eyes of the person above the road, h. All units are feet for all three variables. Here is the equation:
Find L, given that d is 250 feet, and h is 3.5 feet
5. A baseball diamond is actually a square, 90 feet on a side. What is the distance, therefore, from home plate to 2nd base (which is the diagonal of the square)? Report your answer to the nearest foot.