Average Velocity and Speed (HSC SSCE Mathematics Advanced): Flashcards

Position of object at time $t$

$\frac{x_2 - x_1}{t_2 - t_1}$

Positive, negative, or zero

Gradient of chord between two points

Distance always positive; displacement can be negative

Distance travelled / time taken

Never negative, always positive or zero

Velocity has direction; speed does not

Motion in negative/opposite direction

Distance: 160m; displacement: 0m