A San Francisco cable car loses its brakes and runs away down a hill 30 m high. A) Calculate its speed at the bottom of the hill if there is no friction and its initial speed is zero. B) Suppose instead that the brakes fail only partially and the final speed is observed to be 5 m/s. Calculate the thermal energy generated if the cable car plus its load of passengers has a mass of 8000 kg. Use energy consideration.

A San Francisco cable car loses its brakes and runs away down a hill 30 m high. A) Calculate its speed at the bottom of the hill if there is no friction and its initial speed is zero. B) Suppose instead that the brakes fail only partially and the final speed is observed to be 5 m/s. Calculate the thermal energy generated if the cable car plus its load of passengers has a mass of 8000 kg. Use energy consideration.

Name: A San Francisco cable car loses its brakes and runs away down a hill
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Description: A San Francisco cable car loses its brakes and runs away down a hill 30 m high. A) Calculate itsspeed at the bottom of the hill if there is no friction and its initial speed is zero. B) Supposeinstead that the brakes fail only partially and the fina

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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