During the first 18 minutes of a 1.0-hour trip, a car has an average speed of 11 m/s. What must the average speed of the car be during the last 42 minutesof the trip be if the car is to have an average speed of 21 m/s for the entire trip?

During the first 18 minutes of a 1.0-hour trip, a car has an average speed of 11 m/s. What must the average speed of the car be during the last 42 minutesof the trip be if the car is to have an average speed of 21 m/s for the entire trip?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –

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6) During the first 18 minutes of a 1.0 hour trip, a.car has an average speed of 11 m/s. What must the
average speed of the car be during the last 42 minutes of the trip be if the car is to have an average speed
of 21 m/s for the entire trip?
A. 21 m/s
B. 23 m/s
C 25 m/s
D. 27 m/s
29 m/s

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