Here is the question which I am struggling on, please help me!
Question: Mike lifts a 15 kg cubical crate from the floor if his apt until it is flat against the ceiling. The cube has a side length of 0.75 m and the apt ceiling is 2.8m high.
A- How much work against gravity does Mike do in lifting the crate?
I need expert help to solve the above question and assume the mass is uniform.