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....
