Two Questions

  • #1
A system is developed as shown in the diagram attached. The ball is initially given a push so that it falls onto a turbine connected to generator which produces electricity. After rotating the turbine the ball fall down a narrow tube with a valve into the water again the ball rises again and is again given a slight push and the whole process is repeated again and again. In this way energy is being "created". The question is: How does this machine obeys the principle of conservation of energy?
Secondly, Why does a raider raiding a bike falls when the bike is stationary but does not fall when its moving? I know that this question has been asked before but I cant find it.
Any help will be appreciated.:smile:
(Pardon me for my bad english.)
 

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Answers and Replies

  • #2
Tide
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Do you think it is possible to push the ball through the valve and into the water without doing any work?
 
  • #3
No I dont. In my opinion the KE of the ball will be used to open the valve...
 
  • #4
Tide
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And, of course, the ball will have lost some of its energy in turning the turbine.
 

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