Problem 4-40: In the design of couplers-the hook- like linking mechanisms-between the cars of a train, extreme situations are often considered to assess lim- iting requirements. Suppose a locomotive of mass 30,000 kg pulls 80 cars each of mass 30,000 kg. At an acceleration of 0.5 m/s², how much load is trans- ferred by the coupler between the locomotive and the first car: between the 79th and 80th cars?

Problem 4-40: In the design of couplers-the hook- like linking mechanisms-between the cars of a train, extreme situations are often considered to assess lim- iting requirements. Suppose a locomotive of mass 30,000 kg pulls 80 cars each of mass 30,000 kg. At an acceleration of 0.5 m/s², how much load is trans- ferred by the coupler between the locomotive and the first car: between the 79th and 80th cars?

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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Concept explainers

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”

Question

Problem 4-40: In the design of couplers-the hook-
like linking mechanisms-between the cars of a train,
extreme situations are often considered to assess lim-
iting requirements. Suppose a locomotive of mass
30,000 kg pulls 80 cars each of mass 30,000 kg. At
an acceleration of 0.5 m/s², how much load is trans-
ferred by the coupler between the locomotive and the
first car: between the 79th and 80th cars?

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