Answer :
It is the speed[tex]V=c×\sqrt{1-1/nx^{2} }[/tex],far does an emperor ship have to sail in relation to an observer before its markings get confused
What is an easy way to define velocity?
A particle or object's movement with function of time is expressed vectorially as velocity. The meter per second (m/s), usually referred to as speed, is the accepted unit of velocity magnitude. velocity
What distinguishes acceleration from speed?
Velocityy a displacement changes. Speed changes occur at an accelerated rate. Given that it has both and direction, it is a vector quantity. As the rate about which velocity changes, acceleration is likewise a vector quantity.
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