I am taking the average weight of the man into account here, which is 137 lbs.
We divide 5.30ft/s^2 by 32.2 ft/s^2, which is the acceleration due to gravity here on our planet and multiply the answer with the given weight (In this case, the weight of an average man since no value was stated in the question)
(5.30ft/s^2 ÷ 32.2 ft/s^2) 137 lbs = 22.55 lbs
He would weigh 22.55 lbs on the moon.
Hope this helps!
