john's thirsty ! help him drink water !!

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One day while on a trek .. John forgot his way back and was lost .. ( poor guy .. )

He ran out of water .. ( omg ! )

When searching for water , he came across a very deep well... With a water pump attached to it. Near an abandoned camp ( hallelujah ! ).

Unfortunatly the pump required him to start the generator which requires gasoline ..

He searched everywhere but didn't find any ( Dangbabbit !).

He found out that the pump has a little rubber tube attached to it ...

He detached the tube whose one end went in the well..

He estimated the water level in the well to be 20 meters below ground ..

How will poor john drink water ?? And .. Can he ?? ;) Hint :- use physics !!!


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