The relative velocity of an object B relative to an observer A, denoted v B ∣ A {\displaystyle \mathbf {v} _{B\mid A}} (also v B A {\displaystyle \mathbf...

difference in elapsed time as measured by two clocks, either because of a relative velocity between them (special relativity), or a difference in gravitational...

{w}}} Similarly, the relative velocity of object B moving with velocity w, relative to object A moving with velocity v is: v B  relative to  A = w − v {\displaystyle...

formulated as the vector projection of the target-observer relative velocity onto the relative direction or line-of-sight (LOS) connecting the two points...

y_{A}-y_{B},z_{A}-z_{B}\right)} The velocity of one point relative to another is simply the difference between their velocities v A / B = v A − v B {\displaystyle...

motion or peculiar velocity refers to the velocity of an object relative to a rest frame—usually a frame in which the average velocity of some objects is...

The velocity factor (VF), also called wave propagation (relative) speed or (relative) velocity of propagation (VoP or v P {\displaystyle v_{\mathrm {P}...

the most basic form of a velocity triangle consists of the tangential velocity, the absolute velocity and the relative velocity of the fluid making up three...

\mathbf {u'} } of C relative to B (velocity of falling object relative to ship) plus the velocity v of B relative to A (ship's velocity away from the shore)...

parameter defined as the ratio of the relative velocity of separation after a two-body collision to the relative velocity of approach before collision. In...

a constant velocity relative to the former. The respective inverse transformation is then parameterized by the negative of this velocity. The transformations...

In celestial mechanics, escape velocity or escape speed is the minimum speed needed for an object to escape from contact with or orbit of a primary body...

time rate of change of its angular position relative to the origin. [citation needed] Spin angular velocity refers to how fast a rigid body rotates around...

={\dot {\mathbf {r} }}_{1}(t)-{\dot {\mathbf {r} }}_{2}(t)} is the relative velocity. Wilhelm Eduard Weber confirmed Gauss's hypothesis in numerous experiments...

along it, or they can both be moving, with different velocities: what matters is their relative velocity with respect to each other. The boundary can be the...

model must be employed. Treatments of kinetic energy depend upon the relative velocity of objects compared to the fixed speed of light. Speeds experienced...

decrease fluid velocity relative to the solid object in the fluid's path. Unlike other resistive forces, drag force depends on velocity. Drag force is...

gives the correct velocity-addition formula for computing such relative velocity. It is instructive to compute the relative velocity of particles moving...

t0 represent shifts in the origin of space and time, and v is the relative velocity of the two inertial reference frames. Under Galilean transformations...

returning waveforms. This information is used to extrapolate a mean relative velocity for all objects within the sampled airspace. Aeroecologists have used...

the average velocity (a vector), whose magnitude is the average speed (a scalar quantity). A displacement may be formulated as a relative position (resulting...

propagate in a medium, such as sound waves, the velocity of the observer and of the source are relative to the medium in which the waves are transmitted...

successive small distances. The relative velocities of cosmologically distant objects are not even well defined. The relative velocity between two objects corresponds...

moving at velocity v {\displaystyle v} in the x direction relative to the Sun, then by velocity addition the x component of the beam's velocity in the Earth's...

failure to the vehicle. The energy of a 5 kg (11 lb) bird moving at a relative velocity of 275 km/h (171 mph) approximately equals the energy of a 100 kg...

"standing" to refer to a component of the relative velocity of the Sun as it is observed in the sky. Relative velocity is the motion of an object from the point...

{1}{\sqrt {1-\beta ^{2}}}}={\frac {dt}{d\tau }},} where: v is the relative velocity between inertial reference frames, c is the speed of light in vacuum...

relative velocity of 1.37 km/s (3,100 mph). It also approached Earth on 9 January 2025 at roughly 1,801,158 km (1,119,188 mi) when it had a relative velocity...

relative velocity at the exit. Therefore, the relative velocity at the exit V r 2 {\displaystyle V_{r2}} is always greater than the relative velocity...

move against this force, i.e. the angle between the force and the relative velocity is obtuse), then this potential energy is converted back to kinetic...