Question

5. A river 2 metres deep and 45 meters wide is flowing at the rate of 3 km per hour. Find the
water that runs into the sea per minute.
6. A water tank is 3 m 50 cm long 7 m​

Answer 1

Answer:

volume of the water per second = 2*45*3*5/18 = 75 m^3.

1 min = 60 sec

therefore ,

volume of water that runs into the sea per minute is 75*60= 4500 m^3

Explanation:

rate of flow of water =length of water

3km/hr = 3*5/18 m/s