Two blocks A (WA=12 N) and B (ws-20 N) are connected by very light string that passes over a frictionless pulley (as shown in Figure. Block B rest on top of a horizontal tabletop and has a coefficient of kinetic friction against between of 0.15. Block A is suspended on the other end and it does not hit the edge of the tabletop. When the system is released from rest, block A descends to 75 cm. (a) What is the total work done on the system? (b) Using work-energy theorem, what is the speed of each blocks as block A descends to 75 cm? 20 N 12 N
Two blocks A (WA=12 N) and B (ws-20 N) are connected by very light string that passes over a frictionless pulley (as shown in Figure. Block B rest on top of a horizontal tabletop and has a coefficient of kinetic friction against between of 0.15. Block A is suspended on the other end and it does not hit the edge of the tabletop. When the system is released from rest, block A descends to 75 cm. (a) What is the total work done on the system? (b) Using work-energy theorem, what is the speed of each blocks as block A descends to 75 cm? 20 N 12 N
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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Answer provided. answer should be A.)6.75J,B.)2.03m/s
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Transcribed Image Text:Two blocks A (WA=12 N) and B (ws=20 N) are connected by very light string
that passes over a frictionless pulley (as shown in Figure. Block B rest
on top of a horizontal tabletop and has a coefficient of kinetic friction
against between of 0.15. Block A is suspended on the other end and it does
not hit the edge of the tabletop. When the system is released from rest,
block A descends to 75 cm. (a) What is the total work done on the system?
(b) Using work-energy theorem, what is the speed of each blocks as block A
descends to 75 cm?
20 N
12 N
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