垂直 すいちょく抗力 こうりょくではありませんでした
suichokukōryokudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 垂直抗力

1. Was not vertical force.; Was not a vertical reaction force.

Past/Perfective
Negative
Polite
Formal Register
Physics