a) Fill in the blanks with the phrase a greater, the phrase a smaller, the phrase thesame, or the phrase I don't know.(i) Two solid objects have the same mass. Both rotate around the same axis. The one that has more of its mass close tothe axis hasmoment of inertia for that axis.(ii) Two solid objects have the same shape and size. Both rotate around the same axis. The one that has the greater massmoment of inertia for that axis.has(iii) In one situation you spin a ball around an axis through its center. In a second situation you tie one end of a longstring around the same ball, hold the other end of the string in your hand, and whirl the ball around your head.Compared to the moment of inertia of the ball for the first situation, the moment of inertia of the ball for the secondsituation hasvalue.(b) Two spheres, each of mass m, are connected by a rod. (The massof the rod is so small that it can be ignored.) The X shows theposition of the center of mass (cm) of the system. Three possibleMass mMass mrotation axes, 1, 2, and 3, are shown. Rank the moments of inertia ofcmthe system for these three axes, from largest to smallest. Explain howyou made your ranking.AxisAxisАхis# 1#2# 3(c) Two spheres, one of mass m and one of mass 2m, are connectedby a rod. (The mass of the rod is so small that it can be ignored.) TheX shows the position of the center of mass (cm) of the system. ThreeMass mMass 2mpossible rotation axes, 1, 2, and 3, are shown. Rank the moments of|cminertia of the system for these three axes, from largest to smallest.Explain how you made your ranking.Axis# 1AxisAxis# 2# 3

concept used: moment of inertia of a object of mass m and at distance R from axis of rotation is…

a) Fill in the blanks with the phrase a greater, the phrase a smaller, the phrase fthe same, or the phrase I don't know. 1) Two solid objects have the same mass. Both rotate around the same axis. The one that has more of its mass close to the axis has_ moment of inertia for that axis. (i) Two solid objects have the same shape and size. Both rotate around the same axis. The one that has the greater mass has moment of inertia for that axis. (iii) In one situation you spin a ball around an axis through its center. In a second situation you tie one end of a long string around the same ball, hold the other end of the string in your hand, and whirl the ball around your head. Compared to the moment of inertia of the ball for the first situation, the moment of inertia of the ball for the second situation has value.

a) Fill in the blanks with the phrase a greater, the phrase a smaller, the phrase fthe same, or the phrase I don't know. 1) Two solid objects have the same mass. Both rotate around the same axis. The one that has more of its mass close to the axis has_ moment of inertia for that axis. (i) Two solid objects have the same shape and size. Both rotate around the same axis. The one that has the greater mass has moment of inertia for that axis. (iii) In one situation you spin a ball around an axis through its center. In a second situation you tie one end of a long string around the same ball, hold the other end of the string in your hand, and whirl the ball around your head. Compared to the moment of inertia of the ball for the first situation, the moment of inertia of the ball for the second situation has value.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter13: Rotation Ii: A Conservation Approach

Section: Chapter Questions

Problem 52PQ

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