A river 3 m deep and 40 m wide is flowing at the rate of 2 km per hour

1.	A river 3 m deep and 40 m wide is flowing at the rate of 2 km per hour. How much water will fall into the sea in a minute?
Answer» Radius of water flow = 2 km per hour = (2000/60) m/min = (100/3) m/min Depth (h) of river = 3m Width (b) of river = 40m Volume of water followed in 1 min = 100/3 x 40 x 3 m³ Thus, 1 minute 4000 m³ = 4000000 liters of water will fall in sea.

A river 3 m deep and 40 m wide is flowing at the rate of 2 km per hour. How much water will fall into the sea in a minute?

Answer»

Radius of water flow = 2 km per hour = (2000/60) m/min

= (100/3) m/min

Depth (h) of river = 3m

Width (b) of river = 40m

Volume of water followed in 1 min = 100/3 x 40 x 3 m³

Thus, 1 minute 4000 m³ = 4000000 liters of water will fall in sea.