Answered

2) As part of traffic accident investigations, the speed of a car involved can be approximately determined by checking actual skid marks (a) against test skid marks left at 30 mph (p) by the following formula: s= 30*√(a/p)
What speed was the car going if the investigators found the following?
a) a = 144 feet, p = 36 feet b) a = 153 feet, p = 68 feet

Answer :

absor201

a) The speed of car was 60 mph.

b) The speed of car was 45 mph.

Step-by-step explanation:

Given,

a = actual skid marks

p = test skid marks

Formula;

[tex]s=30*\sqrt{\frac{a}{p}}\\[/tex]

a) a = 144 feet, p = 36 feet

Putting in formula;

[tex]s = 30*\sqrt{\frac{144}{36}}\\\\s=30*\sqrt{4}\\\\s=30*2\\\\s=60[/tex]

The speed of car was 60 mph.

b) a = 153 feet, p = 68 feet

Putting in formula;

[tex]s=30*\sqrt{\frac{153}{68}}\\\\s=30*\sqrt{2.25}\\\\s=30*1.5\\\\s=45[/tex]

The speed of car was 45 mph.

Keywords: substitution, speed

Learn more about substitution at:

  • brainly.com/question/10940255
  • brainly.com/question/10941043

#LearnwithBrainly

Other Questions