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Momentum - GEOCITIES.ws
... Momentum can be defined as "mass in motion." All objects have mass; so if an object is moving, then it has momentum - it has its mass in motion. The amount of momentum which an object has is dependent upon two variables: how much stuff is moving and how fast the stuff is moving. Momentum depends upo ...
... Momentum can be defined as "mass in motion." All objects have mass; so if an object is moving, then it has momentum - it has its mass in motion. The amount of momentum which an object has is dependent upon two variables: how much stuff is moving and how fast the stuff is moving. Momentum depends upo ...
09_LectureOutline
... 9-4 Conservation of Linear Momentum The net force acting on an object is the rate of change of its momentum: ...
... 9-4 Conservation of Linear Momentum The net force acting on an object is the rate of change of its momentum: ...
Inelastic Collisions
... Dynamics Track with (2) Dynamics Cars, (1) Flag and (1) Gram Mass Set Introduction: When two objects collide they share a single interaction which creates equal sized forces directed in opposite directions. This interaction may speed-up one object and slow-down the other object, or, the interaction ...
... Dynamics Track with (2) Dynamics Cars, (1) Flag and (1) Gram Mass Set Introduction: When two objects collide they share a single interaction which creates equal sized forces directed in opposite directions. This interaction may speed-up one object and slow-down the other object, or, the interaction ...
Momentum
... obvious that an object has a large momentum if either its mass or its velocity is large. Both variables are of equal importance in determining the momentum of an object. Consider a Mack truck and a roller skate moving down the street at the same speed. The considerably greater mass of the Mack truck ...
... obvious that an object has a large momentum if either its mass or its velocity is large. Both variables are of equal importance in determining the momentum of an object. Consider a Mack truck and a roller skate moving down the street at the same speed. The considerably greater mass of the Mack truck ...
Mechanics Centrifugal force 1.3.16-01
... The experimental set-up is arranged as shown in Fig. 1. The red pointer supplied should be fitted on the central rod of the car. It indicates the distance (axis of rotation to centre of gravity of car). At the outermost end of the centrifugal apparatus, a mask is glued between the guide rods and ser ...
... The experimental set-up is arranged as shown in Fig. 1. The red pointer supplied should be fitted on the central rod of the car. It indicates the distance (axis of rotation to centre of gravity of car). At the outermost end of the centrifugal apparatus, a mask is glued between the guide rods and ser ...
Chapter 13: Periodic Motion
... • Let’s study a motion of the mass m. When the mass is attached to the spring, the spring stretches by x0. Then lift the mass by A and release ...
... • Let’s study a motion of the mass m. When the mass is attached to the spring, the spring stretches by x0. Then lift the mass by A and release ...
Unit 4 Practice Test: Rotational Motion
... a. With a net positive torque, the angular acceleration of an object is clockwise. b. With a net positive torque, the angular acceleration of an object is counterclockwise. c. With a net negative torque, the angular acceleration of an object is counterclockwise. d. The net force of an object is not ...
... a. With a net positive torque, the angular acceleration of an object is clockwise. b. With a net positive torque, the angular acceleration of an object is counterclockwise. c. With a net negative torque, the angular acceleration of an object is counterclockwise. d. The net force of an object is not ...
Chapter 7: Using Vectors: Motion and Force
... velocity, and force vector. 3. Write a velocity vector in polar and x-y coordinates. 4. Calculate the range of a projectile given the initial velocity vector. 5. Use force vectors to solve two-dimensional equilibrium problems with up to three forces. 6. Calculate the acceleration on an inclined plan ...
... velocity, and force vector. 3. Write a velocity vector in polar and x-y coordinates. 4. Calculate the range of a projectile given the initial velocity vector. 5. Use force vectors to solve two-dimensional equilibrium problems with up to three forces. 6. Calculate the acceleration on an inclined plan ...
Relativistic angular momentum
""Angular momentum tensor"" redirects to here.In physics, relativistic angular momentum refers to the mathematical formalisms and physical concepts that define angular momentum in special relativity (SR) and general relativity (GR). The relativistic quantity is subtly different from the three-dimensional quantity in classical mechanics.Angular momentum is a dynamical quantity derived from position and momentum, and is important; angular momentum is a measure of an object's ""amount of rotational motion"" and resistance to stop rotating. Also, in the same way momentum conservation corresponds to translational symmetry, angular momentum conservation corresponds to rotational symmetry – the connection between symmetries and conservation laws is made by Noether's theorem. While these concepts were originally discovered in classical mechanics – they are also true and significant in special and general relativity. In terms of abstract algebra; the invariance of angular momentum, four-momentum, and other symmetries in spacetime, are described by the Poincaré group and Lorentz group.Physical quantities which remain separate in classical physics are naturally combined in SR and GR by enforcing the postulates of relativity, an appealing characteristic. Most notably; space and time coordinates combine into the four-position, and energy and momentum combine into the four-momentum. These four-vectors depend on the frame of reference used, and change under Lorentz transformations to other inertial frames or accelerated frames.Relativistic angular momentum is less obvious. The classical definition of angular momentum is the cross product of position x with momentum p to obtain a pseudovector x×p, or alternatively as the exterior product to obtain a second order antisymmetric tensor x∧p. What does this combine with, if anything? There is another vector quantity not often discussed – it is the time-varying moment of mass (not the moment of inertia) related to the boost of the centre of mass of the system, and this combines with the classical angular momentum to form an antisymmetric tensor of second order. For rotating mass–energy distributions (such as gyroscopes, planets, stars, and black holes) instead of point-like particles, the angular momentum tensor is expressed in terms of the stress–energy tensor of the rotating object.In special relativity alone, in the rest frame of a spinning object; there is an intrinsic angular momentum analogous to the ""spin"" in quantum mechanics and relativistic quantum mechanics, although for an extended body rather than a point particle. In relativistic quantum mechanics, elementary particles have spin and this is an additional contribution to the orbital angular momentum operator, yielding the total angular momentum tensor operator. In any case, the intrinsic ""spin"" addition to the orbital angular momentum of an object can be expressed in terms of the Pauli–Lubanski pseudovector.