Question

Which of the following is a measure of velocity?

30 seconds

30 South

30 meters/second

30 meters/second, South

Answer 1

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,

`v=(\Delta x)/(\Delta t)`

v = velocity

`\Delta x` = change in position

`\Delta t` = 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.