class xi physics - Kendriya Vidyalaya No.1
... *One dimensional motion:- The motion of an object is said to be one dimensional motion if only one out of three coordinates specifying the position of the object change with time. In such a motion an object move along a straight line path. *Two dimensional motion:- The motion of an object is said to ...
... *One dimensional motion:- The motion of an object is said to be one dimensional motion if only one out of three coordinates specifying the position of the object change with time. In such a motion an object move along a straight line path. *Two dimensional motion:- The motion of an object is said to ...
Chapter 3 Vectors
... The second way to solve the problem is to analyze it algebraically. The magnitude of R can be obtained from the law of cosines as applied to the triangle (see Appendix B.4). With ! " 180° # 60° " 120° and R 2 " A2 % B 2 # 2AB cos !, we find that ...
... The second way to solve the problem is to analyze it algebraically. The magnitude of R can be obtained from the law of cosines as applied to the triangle (see Appendix B.4). With ! " 180° # 60° " 120° and R 2 " A2 % B 2 # 2AB cos !, we find that ...
x - University Tutor
... momentarily distracted and does not see the mug, which slides off the counter and strikes the floor 1.40 m from the base of the counter. If the height of the counter is 0.860 m, (a) with what velocity did the mug leave the counter and (b) what was the direction of the mug’s velocity just before it h ...
... momentarily distracted and does not see the mug, which slides off the counter and strikes the floor 1.40 m from the base of the counter. If the height of the counter is 0.860 m, (a) with what velocity did the mug leave the counter and (b) what was the direction of the mug’s velocity just before it h ...
Impulse – Momentum Lab
... If we take one object as our system, we say the other object gives an impulse to the system, causing a change in its momentum. If both objects are in our system the total change in momentum of the system is zero. This is directly analogous to work and energy as explored in the “qualitative reasoning ...
... If we take one object as our system, we say the other object gives an impulse to the system, causing a change in its momentum. If both objects are in our system the total change in momentum of the system is zero. This is directly analogous to work and energy as explored in the “qualitative reasoning ...
Rigid Body Motion - BlackHC's Adventures in the Dev World
... We can use a set of particles to model a rigid body. Each particle has its own properties: mass, position, velocity, etc. But they are all linked together by their constant distance to each other. We will use this to deduce many important properties of rigid bodies. We will see later that many prope ...
... We can use a set of particles to model a rigid body. Each particle has its own properties: mass, position, velocity, etc. But they are all linked together by their constant distance to each other. We will use this to deduce many important properties of rigid bodies. We will see later that many prope ...
NIU Physics PhD Candidacy Exam – Spring 2017 – Classical
... Problem 1. Consider a circular disc of radius R as shown above. The disc is forced to rotate counterclockwise about its center at a constant angular velocity ω. A pendulum with mass m and length L hangs from a point P on the edge of the disc. There is a uniform gravitation field with acceleration g ...
... Problem 1. Consider a circular disc of radius R as shown above. The disc is forced to rotate counterclockwise about its center at a constant angular velocity ω. A pendulum with mass m and length L hangs from a point P on the edge of the disc. There is a uniform gravitation field with acceleration g ...
Que44: What is the Difference between Force and Pressure
... Ans: 1. It gives no information about dimensionless constants and pure numbers. 2. The method cannot be used for deriving relations involving trigonometrical and exponential functions. 3. It cannot be used when a physical quantity depends on more than three quantities i.e. M, L, T. 4. It cannot be u ...
... Ans: 1. It gives no information about dimensionless constants and pure numbers. 2. The method cannot be used for deriving relations involving trigonometrical and exponential functions. 3. It cannot be used when a physical quantity depends on more than three quantities i.e. M, L, T. 4. It cannot be u ...
Rigid Body Motion Presentation as PPTX
... It would be nice to choose it in such a way that applying a force to it won’t induce any actual moment on an unconstrained rigid body, that is . This means that every particle as well as the whole rigid body will experience the same acceleration. So if a force is applied to the p ...
... It would be nice to choose it in such a way that applying a force to it won’t induce any actual moment on an unconstrained rigid body, that is . This means that every particle as well as the whole rigid body will experience the same acceleration. So if a force is applied to the p ...
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.