Question

Police can estimate the speed of a vehicle before the brakes are applied using the formula , 0.75d= s^2/30.25 where s is the speed in miles per hour and d is the length of the vehicle’s skid marks. What was the approximate speed of a vehicle that left a skid mark measuring 160 feet?

Answer 1

.75(160)=S^2/30.25

Answer 2

yes

Answer 3

yeah, i plugged 160 in for d.

can you solve for s?

Answer 4

i wasn't sure that's why i asked:/

Answer 5

120=S^2/30.25
3630=S^2
S=?

Answer 6

1815?

Answer 7

No...
\[s=\sqrt{3630}\]

Answer 8

60 approximatley

Answer 9

Yep