Salutations, all. I have recently been pondering a rather basic, initiate question, just to test my classical physics. So, if a boxer of 40kg throws a metre-long punch that hits his opponent in 0.25s, assuming he can channel his entire body weight into the punch, is the force generated 160N? This is also operating on ignoring air resistance and assuming it is a straight punch. Now, here is my work. This is to see if I am doing things right. Going by linear acceleration, his fist travelled 1M in 0.25s. Therefore, in 1s he could travel 4m. So I now assume that his acceleration is 4m/s/s. Using the formula F=MA, I multiply that acceleration by the weight of 40kg. Therefore, 160N. Have I been working my questions correctly? Thankyou and much gratitude, Mahmoud.