Question

What do "two dimensional motion" and "three dimensional motion" mean?

Answer 1

Motion is the phenomena in which an item changes its location over time, as defined by physics. Displacement, distance, velocity, acceleration, speed, and time are all mathematical concepts used to describe motion. A frame of reference is attached to an observer, and the change in location of the body relative to that frame is measured as time passes. Kinematics is the part of physics that studies the motion of things without regard to their source; dynamics is the branch that studies forces and their influence on motion.

Complete answer:
Motion in two dimensions: Motion in two dimensions is defined as motion in a plane.
Two-dimensional motion is demonstrated by an ant travelling across the top surface of a desk. Two-dimensional motion includes projectile and circular motion.
The route that an item takes in two-dimensional motion is in a plane.
Projectile motion, in which the path is a parabola, and planetary motion, in which the path is an ellipse, are two examples.
The motion of an item launched or projected into the air, subject only to gravity's acceleration, is known as projectile motion. The item is known as a projectile, and the course it takes is known as a trajectory. Falling object motion is a simple one-dimensional kind of projectile motion with no horizontal movement, as described in Problem-Solving Basics for One-Dimensional Kinematics. We'll look at two-dimensional projectile motion in this part, such as that of a football or other item with little air resistance.
Three-dimensional motion is defined as motion in space that includes all of the X, Y, and Z axes.
A gyroscope movement is an example of three-dimensional motion.
Three-dimensional motion is when the path is more complicated and does not follow a single plane. A plane's flight or a boomerang's flight are two examples.
By the way, one-dimensional motion occurs when an item moves in a single straight path, similar to a free-falling object.
A shift in the orientation of a spinning body's rotational axis is known as precession. It may be described as a change in the first Euler angle in a suitable reference frame, whilst the third Euler angle specifies the rotation itself. To put it another way, if a body's axis of rotation rotates around a second axis, the body is said to be precessing around the second axis. Nutation is a motion in which the second Euler angle changes. There are two forms of precession in physics: torque-free and torque-induced precession.

Note:
A particle is considered to be travelling in one dimension if it moves in just one direction throughout its journey. Consider an ant travelling along the X-axis. The words displacement (x), time (t), velocity (v), and acceleration are used to describe motion (a). The rate of change of displacement is called velocity, and the rate of change of velocity is called acceleration.