Question

Topic:- Water,hole and container??? plz... tell
U must have seen that when large amount of water gets filled in kitchen sink and if u let water pass through hole in sink, water rush out and we get cyclone similar things can be seen around us. 
So I want to know why it happens? First I will try to explain by myself and plz u also answer 
Take a bottle fill it with water and invert it.. Water rush out and it takes some time t1to empty bottle
Now again take same bottle filled with same amount of water, but now make a cyclone in water (by giving rotatory motion to bottle)  and invert it, water rush out and it takes time t2to empty bottle
Now it is interesting thing that t2 is less than t1
Not only this, when we create cyclone in water, it takes least time to empty it! 
So whenever u want to empty bottle in least time just make cyclone
Now let us use this fact to understand why cyclone is formed in kitchen sink
Initially large amount of water is collected in sink and hole is closed
When we let water go through hole  all water try to rush out as fast as it can.. That is all water wants to come out in least time
Now only way to do this is to make cyclone.. So water wants to come out in least time therefore cyclone is formed
Am  I correct? 
I hv one more question "why making cyclone empty bottle in least time? "
Plz give ur suggestions 

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Answer 1

Because when we are making the cyclone in the bottle we are applying some force and this force is applying the force on the bottle that's why the water rushes out easily in case we make a cyclone in the water.