Velocity is a speed and a direction, eg \(12 m\,s^{-1}\) on bearing 055 (55º East of North). The term acceleration can refer to a scalar acceleration or an acceleration vector. So far ...

Two important contributors of early protection are speed of replication and onset of immunity, according to Alberto Giner, ...

A trolley is being pulled along a rough surface at a constant speed. Draw the free body diagram for this situation. The resultant vector for two vectors at right angles to each other can be worked ...