Answer : The correct option is 30 meters/second, South.
Explanation :
Velocity : It is defined as the rate of change of position with respect of the time.
Velocity is a physical vector quantity, magnitude and direction are necessary to define it.
The formula of velocity is,
[tex]v=\frac{\Delta x}{\Delta t}[/tex]
v = velocity
[tex]\Delta x[/tex] = change in position
[tex]\Delta t[/tex] = change in time
The unit of position is meter and the unit of time is second.
The SI unit of velocity is meter/second with direction.
Therefore, the correct option is 30 meters/second, South.
