PPT-Law of Inertia

Ms Ead Physics What Is the first law of Motion Station 1 Object in motion Object at rest An object at rest remains at rest and an object in motion remains in motion at the constant speed and in a straight line unless acted on by an unbalanced . 57479 Also defined as the capacity of a cross section to resist bending 57479 It must be specified with respect to a chosen axis of rotation 57479 It is usually quantified in m or kgm 57364574955748357477574855734757361574895749457479573475747557476 5 of the textbook The moment of inertia is related to the rotation of an object about an axi s For a particle with mass the moment of inertia is given by mr where is the distance from the particle to the axis If the density function xy of a lamina The unit vectors 1 2 3 B e e e are fixed in the body and directed along a convenient set of axes pass ing through the mass center G The moments of inertia of the body about t hese axes are defined as 22 xx I y z dm 22 yy I x z dm 22 zz I x Very brie64258y it measures an objects resistance inertia to change in its rotational motion It is analogous to the way mass measure the resistance to changes in the objects linear motion Because it has to do with rotational motion the moment of ine - Class 19. Today:. Rotational . Motion, Rotational Kinematics (some review of Ch.4). Newton’s 2. nd. Law of Rotation. Torque. Moment of Inertia. Centre of Mass. Gravitational Torque. Pre-class reading quiz on Chapter 12. ERCOT. . Joint . FAS/SIRS . Meeting. September 21. st. , 2015. 134 of 145 Wind Generators Responded to Wind . Emulated. . Inertia RFI.. Are there currently any Wind Generators (WGRs) providing Emulated Inertia Response (EIR) in ERCOT? . Rotational Inertia and. Conservation of rotational momentum. Why does a wheel keep spinning?. Why . is a bicycle stable . when it is . moving, but . falls. . over when it stops?. 1. Rotational inertia . Conservation of rotational momentum. 1. Why does a wheel keep spinning. ?. Why . is a bicycle stable when it is moving, but falls over when it . stops?. Why is it difficult to change the orientation of the axis of a spinning wheel?. Conservation of rotational momentum. 1. Why does a wheel keep spinning. ?. Spinning ice skater . Video. . Why is a bicycle stable when it is moving, but falls over when it stops. ?. Why is it difficult to change the orientation of the axis of a spinning wheel?. Type of moment of inertia. Moment of inertia of Area. Moment of inertia of mass. Also known as second moment. Why need to calculate the moment of Inertia?. To . measures the effect of the cross sectional shape of a beam on the beam resistance to a bending moment. We consider the rotation of . rigid bodies. . A rigid body is an extended object in which the mass is distributed spatially.. Where should a force be applied to make it rotate (spin)? The same force applied at . a = r. α. F = . mr. α. . Στ. = r . Σ. F . = . Σ. mr. 2. α. Moment of Inertia (. . I ) – sum of rotational inertia of an object. I = . Σ. mr. 2. . Στ. = I . α. Equation. Rotational Dynamics. Dr. . Mithilesh. . kumar. Context. Information.. Indication.. Anesthesia.. Site.. Technique.. Post- operative.. Surgical removal of a full term . foetus. / . foetuses. other than by the normal vaginal route.. The more mass an object has, the greater its inertia and the more force it takes to change its state of motion. . The amount of inertia an object has depends on its . mass. —which is roughly the . amount of material.