Thank you for visiting An automobile crash investigator measured the skid marks of one of the vehicles involved in a crash The length of the skid marks was 188. This page is designed to guide you through key points and clear explanations related to the topic at hand. We aim to make your learning experience smooth, insightful, and informative. Dive in and discover the answers you're looking for!
Answer :
To find the speed of the vehicle before it started braking, we use the given formula:
[tex]\[ s = \sqrt{24 \times d} \][/tex]
where [tex]\( s \)[/tex] is the speed in miles per hour, and [tex]\( d \)[/tex] is the length of the skid marks in feet.
1. Identify the given information:
- The length of the skid marks, [tex]\( d \)[/tex], is 188 feet.
2. Substitute the value of [tex]\( d \)[/tex] into the formula:
[tex]\[ s = \sqrt{24 \times 188} \][/tex]
3. Calculate the expression inside the square root:
[tex]\[ 24 \times 188 = 4512 \][/tex]
4. Take the square root of the result:
[tex]\[ s = \sqrt{4512} \approx 67.17142249498666 \][/tex]
5. Round the speed to the nearest tenth:
[tex]\[ s \approx 67.2 \][/tex]
Therefore, the speed of the vehicle before it started braking was approximately 67.2 miles per hour.
[tex]\[ s = \sqrt{24 \times d} \][/tex]
where [tex]\( s \)[/tex] is the speed in miles per hour, and [tex]\( d \)[/tex] is the length of the skid marks in feet.
1. Identify the given information:
- The length of the skid marks, [tex]\( d \)[/tex], is 188 feet.
2. Substitute the value of [tex]\( d \)[/tex] into the formula:
[tex]\[ s = \sqrt{24 \times 188} \][/tex]
3. Calculate the expression inside the square root:
[tex]\[ 24 \times 188 = 4512 \][/tex]
4. Take the square root of the result:
[tex]\[ s = \sqrt{4512} \approx 67.17142249498666 \][/tex]
5. Round the speed to the nearest tenth:
[tex]\[ s \approx 67.2 \][/tex]
Therefore, the speed of the vehicle before it started braking was approximately 67.2 miles per hour.
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Rewritten by : Jeany
