The 1900 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 1850 kg counterweight up the other side of the hil. The rolling friction of both the cable car and the counterweight are negligible. (Elgure 1) • Part A How much braking force does the cable car need to descend at constant speed? Express your answer with the appropriate units. Value Units Submit Request Answer • Part B 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? Express your answer with the appropriate units. Value Units Submit Request Answer
The 1900 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 1850 kg counterweight up the other side of the hil. The rolling friction of both the cable car and the counterweight are negligible. (Elgure 1) • Part A How much braking force does the cable car need to descend at constant speed? Express your answer with the appropriate units. Value Units Submit Request Answer • Part B 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? Express your answer with the appropriate units. Value Units Submit Request Answer
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter4: The Laws Of Motion
Section: Chapter Questions
Problem 56P
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