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1-A thing solid cylinder has a mass 0.66kg and a length 0.134 m. What is its mom

ID: 1612374 • Letter: 1

Question

1-A thing solid cylinder has a mass 0.66kg and a length 0.134 m. What is its moment of inertia (in unit of kg.m2) when it is rotating as shown above? (please search your physics text book or other sources for the correct formula for this situation, you lab manual does not necessarily have the formula.)

2-Angle of rotation is often measured in revolution. Please determine how many radians is equivalent to 4.28 revolutions.

3-A solid cylinder has a mass 0.46kg and a radius 0.161 m. What is its moment of inertia (in unit of kg.m2) when it is rotating around its own central axis? (please search your physics text book or other sources for the correct formula for this situation, you lab manual does not necessarily have the formula.)

Explanation / Answer


moment of inertia I = (1/12)*m*L^2 = (1/12)*0.66*0.134^2


I = 0.00098758 kg m^2


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2)

1 revolution = 2 pi rad


given angle of rotation = 4.28 revolution = 4.28*2*pi radians = 26.89 rad


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3)

moment of inertia of cylinder I = (1/2)*m*r^2


I = (1/2)*0.46*0.161^2


I = 0.00596 kg m^2