When the elevator moves downward, the man weighs less because of the inertia.
Force of Weight:Fg=m×g
Fs=m×g-m×1/4g=m×(g-1/4g)=m×3/4g
If He Went Up you would have to add 1/4g
Answer:
OD. The process of cutting down irrelevant information so only the information that is useful for particular purpose remains
“a point representing the mean position of the matter in a body or system.”