Question

a river 2m deep and 40m wide is flowing at the rate of 4.5 kilometre per hour .How many cubic metres of water runs into the sea per minute ​

Answer 1

Answer:

60000 m^3

Step-by-step explanation:

Width of river= 40m

Depth of river= 2m

Speed of river= 4.5 km/h= 1.25 m/s

This implies that-

Length of river at any particular second is= 1.25 m

Therefore volume of water in river at a particular second = 1.25*40*2

= 100 m^3

Therefore water flowing into river per minute= 100*60= 60000 m^3 (Answer)