Question

the cross section of a pipe is 42 CM square and water is pouring out of it at the rate of 1.2 metre per second if the pipe remains full find the number of liters discharged per minute

Answer 1

See the pic for answer

Answer 2

The number of liters of discharge per second will be 302.4 lit/min.

Step-by-step explanation:

The cross-section of the pipe is 42 cm² and water is pouring out of the pipe at the rate of  1.2 meters/ second i.e. 120 cm/second.

Therefore, if the pipe remains full then the number of cm³ discharged per minute will be = (42 × 120) = 5040 cm³/sec.

Now, 1000 cm³ is equivalent to 1 liter of volume.

Therefore, the number of liters of discharge per minute will be $\frac{5040}{1000} \times 60 = 302.4$ liters/min. (Answer)