Question

what is max power used to lift a man​

Answer 1

Force required for lifting 10 kg weight is (10*9.81=) 98.1 Newton. If you assume lifting speed to be 0.1 meter / sec, then power required is (98.1 * 0.1 =) 9.81 Watt. This much power is required without considering losses in lifting mechanism. Generally rated motor speed is 1500 rpm.