The figure shows a 6000 kg cable car descending a high hill. A counterweight of mass 5800 kg on the other side of the hill aids the brakes in controlling the cable car's speed. 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? Counterweight 200 m 30° 20° 10,000 N 980 N O 7100 N 4200 N
The figure shows a 6000 kg cable car descending a high hill. A counterweight of mass 5800 kg on the other side of the hill aids the brakes in controlling the cable car's speed. 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? Counterweight 200 m 30° 20° 10,000 N 980 N O 7100 N 4200 N
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter5: Newton's Laws Of Motion
Section: Chapter Questions
Problem 35PQ: A black widow spider hangs motionless from a web that extends vertically from the ceiling above. If...
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