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4 days ago · The moment of inertia plays the role in rotational kinetics that mass (inertia) plays in linear kinetics—both characterize the resistance of a body to changes in its motion. The moment of inertia depends on how mass is distributed around an axis of rotation, and will vary depending on the chosen axis.
5 days ago · Inertia is a body’s tendency to resist acceleration (see Chapter 3). Although inertia itself is a concept rather than a quantity that can be measured in units, a body’s inertia is directly proportional to its mass ( Figure 14-1 ).
1 day ago · Definition in classical mechanics. Just as for angular velocity, there are two special types of angular momentum of an object: the spin angular momentum is the angular momentum about the object's centre of mass, while the orbital angular momentum is the angular momentum about a chosen center of rotation.
4 days ago · 1. Name, define, and use the following terms properly as they apply to linear motion: force, inertia, mass, weight, momentum, and impulse. 2. Explain what is meant by the terms magnitude, direction, and point of application of force, and use these terms properly as they apply to internal and external forces. 3.
3 days ago · A force applied to a body can change the magnitude of the momentum or its direction or both. Newton’s second law is one of the most important in all of physics. For a body whose mass m is constant, it can be written in the form F = ma, where F (force) and a (acceleration) are both vector quantities.
4 days ago · A body experiencing uniform circular motion requires a centripetal force, towards the axis as shown, to maintain its circular path. In the case of an object that is swinging around on the end of a rope in a horizontal plane, the centripetal force on the object is supplied by the tension of the rope.
3 days ago · Name, define, and use the following terms properly as they relate to rotary motion: eccentric force, torque, couple, lever, moment of inertia, and angular momentum. Solve simple lever and torque problems involving the human body and the implements it uses.
