When an object changes velocity, it accelerates close acceleration The rate of change of velocity. It is measured in metres per second squared (m/s²). Acceleration = change of velocity ÷ time ...

Then calculate the acceleration using this formula: acceleration = change in velocity/divided by time. Repeat the measurements and calculate a mean acceleration, ignoring any anomalies. Then plot ...

Wide binary stars with separation greater than about 2000 astronomical units are interesting natural laboratories that allow a direct probe of gravity at low acceleration weaker than about 1 ...