### Lesson

#### Linear Kinematic Quantities

Distance vs Displacement:

Distance has only magnitude

Displacement is a ‘vector’ quantity with both magnitude and direction

Speed vs Velocity:

Speed has only magnitude

Velocity is a ‘vector’ quantity with both magnitude and direction *

Speed (a scalar quantity) involves distance covered divided by time taken

Velocity (a vector) involves a ‘change in position’ aka ‘displacement’ over a

given period of time

Acceleration:

Acceleration is a ‘vector’ quantity with both magnitude and direction *

Acceleration is the rate of change in (linear) velocity

Direction

Upwards and to the Right are POSITIVE directions*

Downwards and to the Left are NEGATIVE directions*

Acceleration can be positive, negative or zero based on direction of motion AND direction of change of velocity (slowing down/speeding up/constant)

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