並へい進しん運うん動どう

noun

translational motion; translation

Physics term for motion in which all points of a body move uniformly in the same direction, without rotation.

• 剛ごう体たいの並へい進しん運うん動どうは、重じゅう心しんの動うごきで表あらわせる。

  The translational motion of a rigid body can be described by the movement of its center of mass.

• この問もん題だいでは、回かい転てんを無む視しして並へい進しん運うん動どうだけを考かんがえます。

  In this problem, we ignore rotation and consider only translational motion.