I was wondering how I would go about working out the energy required to cut a material (e.g. stone or steel) if given a volume, and all the necessary values pertaining to that specific material? For example, how would I work out the amount of energy required to cut a steel block of dimensions 1 x 1 x 1m. At a depth of 0.2m about the center of the block? Hypothetically, let's say it was cut with a knife of regular kitchen knife dimensions. What steps and formulas would you use?