How much force is exerted to lift 750 kg of water in the well against the force of gravity? How much work is done to lift this water .05m? How does this compart to the work done byt he man in the treadmill?

Answer 1

I don't know what the man on the tread mill has done.

work=m*g*height=750kg*9.8N/kg*.5m
= 750*9.8*.5 joules