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Giovanni Visbal PHYS: 111A Aneer Lamichhane December 1 2020Lab 127: Torque and rotational inertia Objectives 1.To experimentally determine the rotational inertia of a rotating body by measuring its angular acceleration and applying the relation a;∑r=I2.To practice computation of rotational inertias for objects with different shapes (different mass distributions) Introduction When a force is exerted on a rigid object pivoted about an axis, the object tends to rotate about that axis. The tendency of a force to rotate an object about some axis is measured by a quantity called torque t. The magnitude of a single torque associated with the force F is defined by… ●Frr= ⊥●a∑r=I●I = r∑imii2●The rotational inertial of rotating body (experimentally) ○Itotal=rα●Tr=r●ga→T(g)Fnet= ∑F=m−T=m=m−aExperimental Procedures Is given in the Lab manual and PowerPoint given Materials
Results:Table 1: Object Mass [Kg] Radius [m] Rotational Inertia [Kg*m2] Disk M = 1.4297 R = 0.23 Through the center of mass I = MR2