Displacement, Velocity and Acceleration – Study Materials
Displacement:
The displacement of a moving particle is the change in its position, during which the particle remains in motion. It is a vector quantity, has both magnitude and sense of direction. It is denoted by the letter S.
Speed
It is the distance travelled by the particle or body along its path per unit time. It is a scalar quantity, it has magnitude only. It is measured in m/s, km/her etc.
Speed = Distance Travelled / Time Taken
Displacement, Velocity and Acceleration – Study Materials Download
Velocity :
It is the rate of change of displacement. It is a vector quantity.
Velocity = Distance Travelled in Particular Time / Time Taken
In S.I. system, it is measured in m/s.
Acceleration :
It is the rate of change of velocity. It is denoted by ‘a’. In S.I. system, it is measured in m/s2. It is a vector quantity.
∴ Acceleration, a = Change of Velocity / Time Taken
= (Final Velocity – Initial Velocity) / Time Taken
Negative acceleration is called as retardation (when final velocity < Initial velocity)
TNEB TANGEDCO AE Basic Engineering Study Materials
TNEB TANGEDCO AE Study Materials