Now assume that the rain of 4.5 mm/hr lasts exactly 30 minutes.

How large is the discharge in [m³/s] after 30 minutes? If applicable, round your answer to two decimals.

Enter the discharge in [m³/s]:

1 answer

4.5 mm/hr * 1hr/3600s = 4.5/3600 mm/s

To get the volume (m³/s) you need to know the area covered.