Answered: n New York there is a long straight…

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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In New York there is a long straight avenue through the city, there are three speed limit signs. THEY occur in the following order : 60, 30, and 15 km /h, with the 30 km/h sign being midway between the other two. Obeying these speed limits, the smallest possible time Oc that a driver can spend on this part of the road is to travel between the first and second signs at 60 km/h and between the second and third signs at 30 km/h. Another way of following the required speed limit is that a driver could slow down from 60 to 30 km/h with a constant deceleration and then do a similar thing from 30 to 15 km/h. This alternative requires a time Od. Find the ratio Od/Oc

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