If a car leaves a skid mark of 500 feet, how fast was the car traveling?
Using the formula r=2�ã5L
OK, I guess
v = 2 sqrt (5 L)
v = 2 sqrt (2500)
v = 2*5*10
v = 100
To find the speed of the car, we can use the formula:
r = 2√5L
Where:
r = speed in miles per hour (mph)
L = length of the skid mark in feet
In this case, the length of the skid mark is given as 500 feet. So, we can substitute that value into the formula:
r = 2√5 * 500
Now, let's simplify the equation:
r = 2√(5 * 500)
r = 2√(2500)
r = 2 * 50
r = 100
Therefore, the car was traveling at a speed of 100 mph.