posted by KC .
I'm comparing the "g-force" of a rocket and a race car. My answer for the race car corresponds to the answer in the book but my answer for the rocket is off by 1. The book says I need to add 1 G because the rocket is going upward. So, instead of my answer of .87 G, the correct answer is 1.87 G. Why do I need to add the 1 G because of upward motion. I'm stuck. Please help.