Respuesta :

Sueraiuka

Explanation:

Hey, there!!

Ideal machines are defined as the machines which gives 100% (efficiency) output result without losing the input work. There is possibility have a machine with 100% efficiency but the machines like pulley and lever are somehow.

  • For reason for pulley is when it is rotated up to 360° it takes the the load to the desired height. so, it is considered as ideal machine.
  • For lever it amplifies tge the input work to produce output work.

Hope it helps....

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