Question

What is the meaning of one-dimensional motion?

Answer 1

Hint: This can be solved by understanding what motion and dimension are. Motion in simple words is the change in the position of an object over a period of time. A man driving a car on the road is an example of motion. Dimension in an informal sense can be defined as a mathematical space that denotes the smallest number of points needed to identify a point in the space.

Complete step-by-step solution:
One dimensional motion:
The motion of an object along a straight line, or in one particular direction is essentially known as one-dimensional motion.
Some examples of one-dimensional motion are:
A train constructed to move on a single track, a car in motion along a straight road, a person walking across a corridor, dropping a pencil, or throwing a ball are all real-life examples that execute a one-dimensional motion.
But if a body executes its motion in a plane then it’s said to be a two-dimensional motion and if the motion is in space that is it involves all the three coordinates (X, Y, Z) then the motion is said to be three dimensional.

Note: There are one, two, and three dimensions. A line is an example of one dimension because only one point is required to specify a point on it. However, a cylinder required two coordinates to mention a point on it; hence it is a dimension of two. Now, a cube requires three coordinates to specify a point on it thereby it is a dimension of three.