fatter person land faster
No, faster is not a noun because it is neither a person, a place, nor a thing. Faster is actually an adjective.
It can be an adverb (go faster). It can also be an adjective, or a noun for a person who is fasting.
Shorter
Because so people could have faster person to person contact and to pass along information faster than before.
Yes a person jogging travels faster than someone walking.
It is debatable that caffeine makes a person faster. Caffeine does make a person alert and sometime attentive. For manipulation of numbers it is not determined.
An increase in productivity is when a person does something at a faster pace, and they get more done the faster they go.
a muscular man would run faster than a thin man because he physically built
A dog
.
a person would fall faster because we have more mass (weight) than the balloon.