Question

When the motion of a body is along a straight line path, it is called

(a) translatory motion

(b) plane motion

(c) culvilinear motion

(d) none of the mentioned

This question was addressed to me in an internship interview.

My doubt is from Linear Velocity in section Kinematics & Kinetics of Motion of Machine Kinematics

Answer 1

The correct option is (b) plane motion

Easiest explanation: When the motion of a body is confined to only one plane, the motion is said to be plane motion. When the motion of a body is along a straight line path, it is called translatory motion. When the motion of a body is along a curved path, it is called culvilinear motion.