It’s also common in books to do the research and still fudge things because reality gets in the way of telling a story sometimes. Which, again, tangential.

Andy Weir did the math for every single thing that happens in The Martian, often on the page in front of you. His guesses at the internal structure of NASA were so accurate that NASA thought he had an inside source. He still had to fake the fact that a dust storm could blow over a rocket on Mars, because there was no other way to strand Watney there without his crew.

Martian dust storms really do reach hundreds of kilometres an hour. But F is MA. And the density of Martian air is so low that M is stuck being tiny. So there’s very little force in a Martian gale.