The mass of water on the roof is:
7.5 x 4 x 0.002 x 1000 = 60 kg
A flat rectangular roof measures 7.5m by 4m.1 2mm of rain falls on the roof.(1cm3 of water has a mass of 1 gram.)
3 answers
60
The mass of water on the roof is 60 kg.
5 answers