3. A point mass of 1.50 kg is connected to the end of a 2.00 m long rod of negligible mass. The other end of the rod is fixed to act as the axis of rotation regarding the mass. Three forces act on the system as show in the diagram below. = 15.0 N @ 40.0° and acts 0.750 m from the axis of rotation F1 F2 = 4.00 N @ 70.0° and acts 2.00 m from the axis of rotation F3 = 12.0 N @ 20.0° and acts 0.250 m from the axis of rotation Where the angles are relative to the horizontal. a) What is the Net torque acting? Include the associated direction (CW or CCW)→ answer 1.31 N m CW b) What is the angular acceleration of the point mass? → answer 0.219 rad/s² c) What is the rotational kinetic energy after 5.00 s if the system was initially at rest. answer 3.59 J F1 F3 F2

3. A point mass of 1.50 kg is connected to the end of a 2.00 m long rod of negligible mass. The other end of the rod is fixed to act as the axis of rotation regarding the mass. Three forces act on the system as show in the diagram below. = 15.0 N @ 40.0° and acts 0.750 m from the axis of rotation F1 F2 = 4.00 N @ 70.0° and acts 2.00 m from the axis of rotation F3 = 12.0 N @ 20.0° and acts 0.250 m from the axis of rotation Where the angles are relative to the horizontal. a) What is the Net torque acting? Include the associated direction (CW or CCW)→ answer 1.31 N m CW b) What is the angular acceleration of the point mass? → answer 0.219 rad/s² c) What is the rotational kinetic energy after 5.00 s if the system was initially at rest. answer 3.59 J F1 F3 F2

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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