Motion in 1-D Fundamentals - Kinematics
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Description:
The Concept
Kinematics is the study of all causes of motion without diving into the causes of the same.
Study of motion is called Dynamics.
Kinematics vs Dynamics
Following are studied in detail in Kinematics −
- Displacement
- Distance
- Speed
- Acceleration
- Velocity
- Time, etc.
Following are studied in detail in Dynamics −
- Mass
- Torque
- Momentum
- Force
- Angular Momentum
- Gravitation, etc.
1-D (One Dimensional) Kinematics
Motion of particles happen only along a line in one dimension.
In case of straight line like above, motion can happen either along left or right direction.
Sign Convention
Any one direction (in this case either Left or Right) is arbitrarily chosen to be positive (+).
The other direction automatically becomes negative (−).
By standards, we can choose mathematically defined positive axis (rightwards direction) as positive direction.
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