1] A 20kg mass hangs at rest at end of a pendulum rope. Assume that you push it up at 0.6m above initial level and keep it there. Identify forces on the mass, use work- energy theorem in 3D and find: a) How much work do you spend for this operation... b) What average power you have exerted... c) How much work do you spend for this operation... If it takes 0.6 sec to bring it from "A" to "B". If you keep it at rest at "B" for 2 minutes, .. Then, you leave free. ... d) What is its speed when it arrives at A?.. B 0.6m A

1] A 20kg mass hangs at rest at end of a pendulum rope. Assume that you push it up at 0.6m above initial level and keep it there. Identify forces on the mass, use work- energy theorem in 3D and find: a) How much work do you spend for this operation... b) What average power you have exerted... c) How much work do you spend for this operation... If it takes 0.6 sec to bring it from "A" to "B". If you keep it at rest at "B" for 2 minutes, .. Then, you leave free. ... d) What is its speed when it arrives at A?.. B 0.6m A

Name: 1] A 20kg mass hangs at rest at end of a pendulum rope. Assume that y
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Description: 1] A 20kg mass hangs at rest at end of a pendulum rope. Assume that you push it up at 0.6m aboveinitial level and keep it there. Identify forces on the mass, use work- energy theorem in 3D and find:a) How much work do you spend for this operation...

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 7CQ: As a mass tied to the end of a string strings from its highest point down to its lowest point, it is...

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