Question

After a car accident, the skid marks for one car measured 190 feet. Use the formula s = √ 24 d , where d represents the length of the skid mark (in feet) and s represents the speed of the car before the brakes were applied, to find the speed of the car before the brakes were applied. Round your answer to the nearest tenth.

Answer 1

Answer:

s = 67.5 m/s

Explanation:

Skid mark for the car = 190 ft

given equation of speed and distnace

$s = \sqrt{24d}$

d is the distance

s is the speed  

$s = \sqrt{24\times 190}$

$s = \sqrt{4560}$

$s =67.52 m/s$

rounding off the answer to the nearest tenth

s = 67.5 m/s

The speed of the car before it stop is equal to s = 67.5 m/s