In summary, the conversation discusses the question of what the maximum impulse force would be on the components/parts of a machine as it lowers and then immediately stops a weight of 100 pounds at 2m/s for 1000mm before lifting it back up at the same speed. The conversation also addresses the force needed to lift the weight from rest and how it would increase every 10th of a second during the lift. The conversation also touches on the issue of force units being measured in both US and SI units. It is suggested that the time interval during the accelerating phase must be about 1 second to stay within the limits of the machine, and it is noted that the conversation involves a man lifting the weight, which can complicate the