I need help. I have no physics background so need the simplest of answers. I have a question to answer - about the damage that might be caused to a person falling 0.4m off a step. The questions doesn't ask for specific calculations but ask for concepts of force, acceleration and gravity to be applied and some equations and diagrams to show the results. My reseach so far suggests I need to work out the net force at stopping point - does this sound correct. Once I have that I can research further on the possible damage from this force. Also, I imagine I'd have to give the person a weight of say 70kg to work this out. I did do a calcualtion of time based on 70kg and 0.4m ending with 0.28 seconds. I have no idea if this is correct. Help!!!!!!