Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Explain graphical representations of motion.
There are two main types of graphical representations which are used to represent motion.
1. Distance-time graphs - These graphs give an idea of the distance travelled by the body with respect to time. They are plotted keeping distance along y-axis (vertical line) and time along x-axis (horizontal line).
There are two types of distance-time graphs:
(I) Uniform motion- A body is said to be in uniform motion if it travels equal distances in equal intervals of time, no matter how small these time intervals maybe. In other words, the distance travelled is directly proportional to time. Thus, a distance-time graph for uniform motion will be a straight line.
(II) Non-Uniform motion- A body is said to be in a non-uniform motion if it travels unequal distances in equal intervals of time. In other words, motion is said to be accelerated. Thus, a distance-time graph for non-uniform motion will be a curved line.
2. Velocity - time graph (or Speed time graph) - These graphs show the speed and direction of an object travelling over a specific period of time. They are plotted keeping velocity along y-axis (vertical line) and time along x-axis (horizontal line).
There are three types of velocity-time graphs:
(I) Velocity-time graphs with constant/uniform velocity (zero acceleration).
When the speed of the body remains constant, then it means the speed of the body is not changing with respect to time and hence, there is zero or no acceleration.
So, the velocity-time graph of a body moving with constant speed is a straight line parallel to the x-axis (time axis).
(II) Velocity-time graphs with constant/uniform acceleration.
When the speed of the body changes at a uniform rate, its speed changes by equal amounts in equal intervals of time. So, the velocity-time graph of a body moving with uniform acceleration is a straight line.
(III) Velocity-time graphs with increasing acceleration (non-uniform acceleration).
When the speed of the body changes in an irregular or non-uniform way (there is non-uniform acceleration). So, the velocity-time graph of the body moving with non-uniform acceleration is a curved line.
143 Views
