define one dimensional, two dimensional and three dimensional motion with example.
Answers
Answer:
One dimensional motion describes objects moving in straight lines. Speed is a scalar measure of how quickly an object is moving along this line. ... When restricted to one dimension, there are only two possible directions for the velocity and acceleration vectors to point in.
Two-dimensional motion is the study of movement in two directions, including the study of motion along a curved path, such as projectile and circular motion.
3-dimensional motions are motions that occur in three dimensions. Depending on the forces acting on the object, they can have constant or varying velocity. They can be described with equations using three spatial variables and one time variable.
An ant moving on the top surface of a desk is example of two dimensional motion. Projectile and circular motion are examples of two dimensional motion. Motion in three dimension: Motion in space which incorporates all the X, Y and Z axis is called three dimensional motion.
Answer:
MOTION IN TWO AND THREE DIMENSION - LAW
Motion in One, Two and Three Dimensions
Let the position of a particle in space be expressed in terms of rectangular coordinates x, y and z. When these coordinates change with time, then the particle is said to be in motion. However, it is not necessary that all the three coordinates should together change with time. Even if one or two coordinates changes with time, the particle is said to be in motion. Then we have the following classification.
i. Motion in one dimension
One dimensional motion is the motion of a particle moving along a straight line.
This motion is sometimes known as rectilinear or linear motion.
In this motion, only one of the three rectangular coordinates specifying the position of the object changes with time.
For example, if a car moves from position A to position B along x-direction, as shown in Figure 2.8, then the variation in x-coordinate alone is noticed.
Examples
· Motion of a train along a straight railway track.
· An object falling freely under gravity close to Earth.