Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN: 9780134463216
Author: Robert F. Blitzer
Publisher: PEARSON
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Question

Police use the formula:

v=√20L

to estimate the speed of a car, v, in miles per hour, based on the length, LL, in feet, of its skid marks when suddenly braking on a dry, asphalt road. At the scene of an accident, a police officer measures a car's skid marks to be 178 feet long. Approximately how fast was the car traveling? Round your answer to the nearest tenth (one decimal place) of a unit.

Answer: The car was traveling at approximately     ?       miles per hour.

Police use the formula:
V =
V20L
to estimate the speed of a car, v, in miles per hour, based on the length, L, in feet, of its skid marks
when suddenly braking on a dry, asphalt road. At the scene of an accident, a police officer measures
a car's skid marks to be 178 feet long. Approximately how fast was the car traveling? Round your
answer to the nearest tenth (one decimal place) of a unit.
Answer: The car was traveling at approximately
miles per hour.
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Transcribed Image Text:Police use the formula: V = V20L to estimate the speed of a car, v, in miles per hour, based on the length, L, in feet, of its skid marks when suddenly braking on a dry, asphalt road. At the scene of an accident, a police officer measures a car's skid marks to be 178 feet long. Approximately how fast was the car traveling? Round your answer to the nearest tenth (one decimal place) of a unit. Answer: The car was traveling at approximately miles per hour.
Expert Solution
Check Mark
Step 1

Use the formula to calculate speed of the car.

v=√(20L).

v :- Speed of a car.

L :- Length of its skid mark's.

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