There is a 20kg rectangular shaft with length of 2 meters that needs to be lifted up by forklift. Since a forklift can only carry 10kg object, someone proposed that they use 2 forklifts to lift it up. Question is, does can the forklifts lift it up? Explain your answer with the positioning of the forklift. Can it both lift up in the middle of the shaft or does it both need to be spread evenly?