In relativity theory, proper acceleration is the physical acceleration (i.e., measurable acceleration as by an accelerometer) experienced by an object...

for the special case of proper acceleration measured by a comoving accelerometer. Another useful formalism is four-acceleration, as its components can...

accelerometer is a device that measures the proper acceleration of an object. Proper acceleration is the acceleration (the rate of change of velocity) of the...

allows to describe the more realistic scenario of constant proper acceleration, i.e. the acceleration indicated by a comoving accelerometer. This leads to hyperbolic...

equal to the proper acceleration that a moving particle "feels" moving along a worldline. A worldline having constant four-acceleration is a Minkowski-circle...

expressed by the coordinate distance x as a function of proper time τ at constant proper acceleration a. It is given by: x ( τ ) = c 2 a ( cosh ⁡ a   τ c...

{\text{arsinh}}(a\ T_{a}/c)\,} where a is the proper acceleration, felt by clock K' during the acceleration phase(s) and where the following relations hold...

gravitational acceleration, in that the proper acceleration and hence four-acceleration of objects in free fall are zero. Rather than undergoing an acceleration, objects...

undergoing centripetal (directed towards the center) acceleration. Proper acceleration, the acceleration of a body relative to a free-fall condition, is measured...

coordinate acceleration, but rather a proper acceleration, which is the acceleration relative to free-fall. Forces, specific forces, and proper accelerations are...