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Centripetal force
... • A motorcycle drives around a bend with a 50-meter radius at 10 m/sec. • Find the motor cycle’s centripetal acceleration and compare it with g, the acceleration of gravity. ...
... • A motorcycle drives around a bend with a 50-meter radius at 10 m/sec. • Find the motor cycle’s centripetal acceleration and compare it with g, the acceleration of gravity. ...
Understanding Motion, Energy, and Gravity
... • Extended Galileo’s notion of inertia along the Earth’s surface to that of straight line motion • Proposed three laws of motion which would inspire Newton to create the now classical Three Laws of Motion ...
... • Extended Galileo’s notion of inertia along the Earth’s surface to that of straight line motion • Proposed three laws of motion which would inspire Newton to create the now classical Three Laws of Motion ...
Chapter 2 Motion Along a Straight Line
... Suppose that to pump the gasoline, pay for it, and walk back to the truck takes you another 45 min. What is your average speed from the beginning of your drive to your return to the truck with the gasoline? ...
... Suppose that to pump the gasoline, pay for it, and walk back to the truck takes you another 45 min. What is your average speed from the beginning of your drive to your return to the truck with the gasoline? ...
Chapter 2 Motion Along a Straight Line
... Suppose that to pump the gasoline, pay for it, and walk back to the truck takes you another 45 min. What is your average speed from the beginning of your drive to your return to the truck with the gasoline? ...
... Suppose that to pump the gasoline, pay for it, and walk back to the truck takes you another 45 min. What is your average speed from the beginning of your drive to your return to the truck with the gasoline? ...
1443-501 Spring 2002 Lecture #3
... Magnitude of torque is defined as the product of the force exerted on the object to rotate it and the moment arm. When there are more than one force being exerted on certain points of the object, one can sum up the torque generated by each force vectorially. The convention for sign of the torque is ...
... Magnitude of torque is defined as the product of the force exerted on the object to rotate it and the moment arm. When there are more than one force being exerted on certain points of the object, one can sum up the torque generated by each force vectorially. The convention for sign of the torque is ...
6 - JustAnswer
... particle on the circumference of the wheel was (A)0.50fps per sec (B)0.6 (C)0.7 (d)0.8 19. What is the displacement vector for a body that moved from a position of 6ft to the left of a reference point to a position of 10ft to the right of the reference point? (A)10ft to the left (B)12 ft to the righ ...
... particle on the circumference of the wheel was (A)0.50fps per sec (B)0.6 (C)0.7 (d)0.8 19. What is the displacement vector for a body that moved from a position of 6ft to the left of a reference point to a position of 10ft to the right of the reference point? (A)10ft to the left (B)12 ft to the righ ...
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.