80 m 40 m Figure 7.8 (Quick Quiz 7.6)

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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A racetrack is constructed such that two arcs of radius 80 m at A and 40 m at B are joined by two stretches of straight track as in Figure 7.8. In a particular trial run, a driver travels at a constant speed of 50 m/s for one complete lap.
1. The ratio of the tangential acceleration at A to that at B is
(a) 1/2 (b) 1/4 (c) 2 (d) 4 (e) The tangential acceleration is zero at both points.
2. The ratio of the centripetal acceleration at A to that at B is
(a) 1/2 (b) 1/4 (c) 2 (d) 4 (e) The centripetal acceleration is zero at both points.
3. The angular speed is greatest at
(a) A (b) B (c) It is equal at both A and B.

80 m
40 m
Figure 7.8 (Quick Quiz 7.6)
Transcribed Image Text:80 m 40 m Figure 7.8 (Quick Quiz 7.6)
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