Hello. I am new to this website and am not looking for homework help. In fact I have no background in physics whatsoever. I am looking for the speed necessary to cause a specific g-force rating of 5.22 on an object weighing in at 11, 245 lbs and the distance covered would be approximately 1 foot to where the speed would equal zero. The object was traveling in a straight line at the time the impact occurred. Thank you for any help you can give me with this. Also, if you could include the equations used to calculate this with a brief explanation I would appreciate it. I apologize in advance for my ignorance if I have left anything out.