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Question 5. Consider the following four ticis hoop, afat disks sphere, and a hollow sphere. Each of the a cts has mass M and radius R The axis of rotation passes through the center of each obiect, and is perpendicular the plane of the hood and the plane of the fat disk Which of these objects requires the largest torgue to give it the same angular acceleration? A) the hoop B) the hollow sphere C) the solid sphere D) the flat disk E) both the solid and the hollow spheres Question 6. In analyzing the equilibrium of a flat, rigid object, you are about to choose an axis about which you will calculate torques. Which of the following describes the choice you should make? a. The axis should pass through the object's center of mas b. The axis should pass through one end of the object. C. The axis should be either the x axis or the y axis. d. The axis should pass through any point within the object. e. Any axis within or outside the object can be chosen. Question 7. Which one of the following statements concerning simple harmonic motion is false? a) The displacement versus time graph for an object in simple harmonic motion resembles the sine or cosine function. b) A restoring force acts on an object in simple harmonic motion that is directed in the same direction as the object's displacement. c) The amplitude of the object in simple harmonic motion is the maximum distance the object moves from its equilibrium position. d) During simple harmonic motion, the net force on the object is zero newtons when it is at its equilibrium position. e) A restoring force acts on the object that is proportional to the object's displacement from its equilibrium position. Question 8. What happens when a spinning ice skater draws in her outstretched arms? a) Her moment of inertia decreases causing her to speed up. b) Her angular momentum decreases. c) The torque that she exerts increases her moment of inertia. d) Her angular momentum increases. e) Her moment of inertia decreases causing her to slow down.

Answer 1

Thank you...Dear student....as per rule o have attempted one question....you should send one by one....it's really very difficult for us to solve all questions in once...Thank you best of luck for exams

Page No. Date Anca) Restoring force kx - lisian shows that the restoring force is in the simple harmonic motion is oppositly. directed not in he same direction because to restoring force is the force that too to being the mass on its equlibaum Position, So option cor is false