垂すい直ちょく抗こう力りょく

す

い

ちょ

く

こ

う

りょ

く

Meanings

1

noun

normal force

physics

Physics term for the perpendicular contact force exerted by a surface on an object.

垂droop, suspend, hang

直straightaway, honesty, frankness

抗confront, resist, defy

力power, strength, strong

摩ま擦さつ力りょく
摩擦力 is frictional force, which acts parallel to the surface, while 垂直抗力 is the perpendicular normal force.
重じゅう力りょく
重力 is gravity, pulling objects downward; 垂直抗力 is the supporting force from a surface, often balancing gravity.

Compound of 垂直 (vertical, perpendicular) and 抗力 (resistance, reaction force). A modern technical term from physics.