Solve the problem.
-Police use the formularmula $\mathrm { s } = \sqrt { 30 \mathrm { fd } }$ to estimate the speed s of a car in miles per hour, where d is the distance in feet that the car skidded and f is the coefficient of friction. If the coefficient of friction on a certain gravel road is 0.26 And a car skidded 350 feet, find the speed of the car, to the nearest mile per hour.
A)2730 mph
B)52 mph
C)102 mph
D)286 mph

Question

Solve the problem.
-Police use the formularmula   $\mathrm { s } = \sqrt { 30 \mathrm { fd } }$ to estimate the speed s of a car in miles per hour, where d is the distance in feet that the car skidded and f is the coefficient of friction. If the coefficient of friction on a certain gravel road is 0.26 And a car skidded 350 feet, find the speed of the car, to the nearest mile per hour.
A)2730 mph
B)52 mph
C)102 mph
D)286 mph

Quizplus · Accepted Answer

To find the speed of the car, substitute $d = 350$ and $f = 0.26$ into the formula $s = \sqrt{30fd}$. This gives $s = \sqrt{30 \times 0.26 \times 350}$, which simplifies to approximately 52 mph when calculated.

Solve the Problem s=30fd\mathrm { s } = \sqrt { 30 \mathrm { fd } }s=30fd​

Solve the Problem $\mathrm { s } = \sqrt { 30 \mathrm { fd } }$