Answered: Counterweight 200 m 200 30°

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter2: Vectors

Section: Chapter Questions

Problem 2.13CYU: Check Your Understanding Find the angle between forces F1and F3in Example 2.16.

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The 2090 kg cable car shown in the figure descends a 200-m-high hill. In addition to its brakes, the cable car controls its speed by pulling an 1860 kgcounterweight up the other side of the hill. The rolling friction of both the cable car and the counterweight are negligible. How much braking force does the cable car need to descend at constant speed? One day the brakes fail just as the cable car leaves the top on its downward journey. What is the runaway car's speed at the bottom of the hill?

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