Kinematics

Displacement

How far travelled from starting point to its end point in a given direction

Average velocity

(u+v)/2

Acceleration

(v-u)/t

v

u+at

s

t(u+v) x 1/2

s

ut+ 1/2at²

v²

u² + 2as

Convention of signs (+ / -)

For vectors we use positives and negatives to indicate direction

Acceleration is a change in velocity per unit time. Therefore an object is accelerating if its

Changing direction, speeding up, slowing down

A body thrown horizontally or upwards in a diagonal will describe 2D motion

The horizontal and vertical components need to be analysed independently