Question

in a large cylinder water tank ,water is coming out from a small hole st bottom it takes 7 minutes to empty half.the approx further time in which tank empties completely​

Answer 1

Answer:

Explanation:

Hope it helped

Answer 2

The water will take 17 minutes to completely evacuate the tank.

Explanation:

We are given the dimensions as:

• 6 cm/s = 6 x 10^-2 m/s
• 6 mm = 6 x 10^-3 m

Solution:

Time taken to empty half.

t = A/ Ao √ 2 / g [ √ H - √ H' ]

t1 = 7 = A / Ao √ 2 / g [ √ H - √ H' / 2 ]   ------(1)

t2 = t2 = A / Ao √ 2 / g [ √ H / 2 - 0 ]      -----(2)

Now dividing equation 1 by 2.

7 / t2 = [√ H - √ H' / 2 ] / √ H / 2

7 / t2 = √2 H - √ H / √H = √2 - 1

7 / t2 = 0.41

t2 = 7 / 0.41

t2 = 17 minutes.

Thus the water will take 17 minutes to completely evacuate th tank.e