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For those who don't get it, the first equation is the calculation of your final velocity. It states that your final velocity is equal to your initial velocity plus your acceleration multiplied by the time spent accelerating. The second equation is the calculation of the force applied to the ground, and by Newton's Law, you, when you land. It states that the force applied is equivalent to your mass multiplied by the ratio of your change in velocity (however fast you were falling to 0) over the amount of time it took to change that velocity (near 0, as you'll stop almost instantly when you hit the ground). If TL;DR: It says it's not the speed at which you fall that kills you, it's how hard you hit the ground.
^ physicsnerd Saves the day! ;D