The 845-kg motorized unit A is designed to raise and lower the 480-kg bucket B of concrete. Determine the average force R which supports unit A during the 4.5 seconds required to slow the descent of the bucket from 4.1 m/s to 0.6 m/s. Analyze the entire system as a unit without finding the tension in the cable. B Answer: R = i kN
The 845-kg motorized unit A is designed to raise and lower the 480-kg bucket B of concrete. Determine the average force R which supports unit A during the 4.5 seconds required to slow the descent of the bucket from 4.1 m/s to 0.6 m/s. Analyze the entire system as a unit without finding the tension in the cable. B Answer: R = i kN
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter7: Dry Friction
Section: Chapter Questions
Problem 7.79P: The coefficient of rolling resistance between the 30-kg lawn roller and the ground is r=0.1. (a)...
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