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Special Relativity

... with respect to A, v CA ? This was for the x-component of the velocity, so we can write that explicitly, Distances in the y- and z-directions are not affected, but time is affected. So the velocity components in the y- and z-directions are ...

Speed and Velocity

... is If an antique car travels 45 km in 3 h, then its average velocity is Things do not always move with a constant velocity. The velocity may change. The instantaneous velocity is the velocity "right now", the velocity at some particular ...

Speed and Velocity

... is If an antique car travels 45 km in 3 h, then its average velocity is Things do not always move with a constant velocity. The velocity may change. The instantaneous velocity is the velocity "right now", the velocity at some particular ...

Newton's SECOND Law of Motion

Newton's SECOND Law of Motion Terminal Velocity Consider a parachutist who jumps from a perfectly good airplane. What forces act on this parachutist? Certainly, there is a force of gravity, the weight W , But there is also a force of air ...

Vectors and 2D Motion

... one-dimensional motion, we often want to know about the instantaneous velocity, the velocity at this moment. That is the average velocity over a smaller and smaller time interval. As before, this instantaneous velocity is often called ...

Special Relativity

... Relativity and SpaceTime Coordinates Simultaneity The Lorentz Transformations Appli-cations of the Lorentz Transformations Velocity Transformations Mass in Special Relativity Summary Homework Key Ideas Galilean Transformations Return to PHY ...

Special Relativity

... at our leisure, we can measure the distance between these marks. Consider a meterstick at rest in the B frame, moving at velocity v with respect to the A frame. The two ends of the meter stick are marked by "events" . This may be exploding ...

Special Relativity

... postulate of Special Relativity: All the laws of Physics are the same for all observers moving with consant relative velocity. An important corollary: All observers in inertial frames measure the same value for the speed of light (in ...

Special Relativity

... is the same as replacing v with  - v! So far we have not mentioned the coordinates y and z, perpendicular to the relative velocity vector. They are not altered at all. That is, y B = y A and z B = z A Now that we have the Lorentz ...

PHY1160C, Principles of Physics II