A student sits on a rotating stool holding two 3.0 kg objects. When his arms are extended horizontally, the objects are 1.0 m from the axis of rotation, and he rotates with an angular speed of 0.75 rad/s. The moment of inertia of the student plus stool is 3.0 kg m2 and is assumed to be constant. The student then pulls the objects horizontally to 0.50 m from the rotation axis. (a) Find the new angular speed of the student. 1.907 Your response differs from the correct answer by more than 10%. Double check your calculations. rad/s (b) Find the kinetic energy of the student system before and after the objects are pulled in. before after

A student sits on a rotating stool holding two 3.0 kg objects. When his arms are extended horizontally, the objects are 1.0 m from the axis of rotation, and he rotates with an angular speed of 0.75 rad/s. The moment of inertia of the student plus stool is 3.0 kg m2 and is assumed to be constant. The student then pulls the objects horizontally to 0.50 m from the rotation axis. (a) Find the new angular speed of the student. 1.907 Your response differs from the correct answer by more than 10%. Double check your calculations. rad/s (b) Find the kinetic energy of the student system before and after the objects are pulled in. before after

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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