A state patrol officer saw a car start from rest at a highway on-ramp. She radioed ahead to another officer 28mi along the highway. When the car reached the location of the second officer 27min later, it was clocked going 60 mi/hr. The driver of the car was given a ticket for exceeding the 60 mi/hr speed limit. Why can the officer conclude that the driver exceeded the speed limit?

Question

Physics

Madalynn Conley

14 September, 09:46

A state patrol officer saw a car start from rest at a highway on-ramp. She radioed ahead to another officer 28mi along the highway. When the car reached the location of the second officer 27min later, it was clocked going 60 mi/hr. The driver of the car was given a ticket for exceeding the 60 mi/hr speed limit. Why can the officer conclude that the driver exceeded the speed limit?

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Answers (1)

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Regina Castaneda · Answer 1

driving car is more speed than the speed limit because avg speed is that car is 62.22 mi/hr

Explanation:

Given data

distance = 28 mi

time = 27 min

car speed limit = 60 mi/hr

to find out

conclude that the driver exceeded the speed limit

solution

we calculate here avg speed from mean value theorem i. e

avg speed = (total distance) / (total time)

avg speed = (28 - 0) / ((27/60) - 0)

avg speed = 62.22 mi/hr

so we can say that that driving car is more speed than the speed limit because avg speed is that car is 62.22 mi/hr