PPT
... A man pushing a mop across a floor causes it to undergo two displacements. The first has a magnitude of 150 cm and makes a angle of 1200 with the positive x-axis. The resultant displacement has a magnitude of 140 cm and is directed at an angle of 35.00 to the positive x axis. Find the magnitude and ...
... A man pushing a mop across a floor causes it to undergo two displacements. The first has a magnitude of 150 cm and makes a angle of 1200 with the positive x-axis. The resultant displacement has a magnitude of 140 cm and is directed at an angle of 35.00 to the positive x axis. Find the magnitude and ...
Luis Anchordoqui
... The astronaut's mass is 60 kg and the panel's mass is 80 kg. Both the astronaut and the panel initially are at rest relative to the telescope. The astronaut then gives a panel a shove. After the shove it is moving at 0.3 m/s relative to the telescope. What is her subsequent velocity relative to the ...
... The astronaut's mass is 60 kg and the panel's mass is 80 kg. Both the astronaut and the panel initially are at rest relative to the telescope. The astronaut then gives a panel a shove. After the shove it is moving at 0.3 m/s relative to the telescope. What is her subsequent velocity relative to the ...
Dynamics
... Relating acceleration velocity time and position allows you to manipulate any knowledge you may have about a problem to either answer a question directly, or put it into a form that is easier to use. It is not a theoretical exercise. The three ways we discussed to relate force and motion, Newton’s 2 ...
... Relating acceleration velocity time and position allows you to manipulate any knowledge you may have about a problem to either answer a question directly, or put it into a form that is easier to use. It is not a theoretical exercise. The three ways we discussed to relate force and motion, Newton’s 2 ...
lectur~4-1 - Dr. Khairul Salleh Basaruddin
... momentum. It can be applied to problems involving both linear and angular motion. This principle is useful for solving problems that involve force, velocity, and time. It can also be used to analyze the mechanics of impact (taken up in a later section). ...
... momentum. It can be applied to problems involving both linear and angular motion. This principle is useful for solving problems that involve force, velocity, and time. It can also be used to analyze the mechanics of impact (taken up in a later section). ...
centripetal force
... moving in a circle also have a rotational or angular velocity, which is the rate angular position changes. Rotational velocity is measured in degrees/second, rotations/minute (rpm), etc. Common symbol, w (Greek letter omega) ...
... moving in a circle also have a rotational or angular velocity, which is the rate angular position changes. Rotational velocity is measured in degrees/second, rotations/minute (rpm), etc. Common symbol, w (Greek letter omega) ...
rotational equilibrium
... is in rotational equilibrium – THUS, for an object to be completely in equilibrium, the net force and the net torque must be zero – The dependence of equilibrium on the absence of net torque is called the second condition for equilibrium. ...
... is in rotational equilibrium – THUS, for an object to be completely in equilibrium, the net force and the net torque must be zero – The dependence of equilibrium on the absence of net torque is called the second condition for equilibrium. ...
File - Physics Made Easy
... Moon revolves around the earth in a circular orbit and the earth moon system goes round the sun in elliptical orbit (as shown), Both Earth & moon move along the circular paths about their cm such that they are always on opp. Sides of it. It is the cm of earth moon system that exactly follow the ...
... Moon revolves around the earth in a circular orbit and the earth moon system goes round the sun in elliptical orbit (as shown), Both Earth & moon move along the circular paths about their cm such that they are always on opp. Sides of it. It is the cm of earth moon system that exactly follow the ...
PPT
... – Math, Torque, Angular Momentum, Energy again, but more sophisticated – The material will not be on the 3rd exam, but will help with the exam. It will all be on the final ...
... – Math, Torque, Angular Momentum, Energy again, but more sophisticated – The material will not be on the 3rd exam, but will help with the exam. It will all be on the final ...
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.