From this derivative equation, in the one-dimensional case it can be seen that the area under a velocity vs. time (v vs. t graph) is the displacement, s. In calculus terms, the integral of the …

Stated formally, in general, an equation of motion M is a function of the position r of the object, its velocity (the first time derivative of r, v = ⁠dr dt⁠), and its acceleration (the second derivative of r, …

The relative velocity of an object B with respect to an observer A, denoted (also or ), is the velocity vector of B measured in the rest frame of A. The relative speed is the vector norm of the …

In relativistic physics, a velocity-addition formula is an equation that specifies how to combine the velocities of objects in a way that is consistent with the requirement that no object's speed can …

To derive the equations of special relativity, one must start with two other The laws of physics are invariant under transformations between inertial frames. In other words, the laws of physics …

Flow velocity The solution of the equations is a flow velocity. It is a vector field —to every point in a fluid, at any moment in a time interval, it gives a vector whose direction and magnitude are …

In physics, angular velocity (symbol ω or ⁠ ⁠, the lowercase Greek letter omega), also known as the angular frequency vector, [1] is a pseudovector representation of how the angular position or …

is the flow velocity relative to the object (meters per second). Note the minus sign in the equation, the drag force points in the opposite direction to the relative velocity: drag opposes the motion. …