Uniformly accelerated motion

displacement letter & measurement

S , metres

initial velocity letter & measurement

U , metres/second (ms^-1)

final velocity letter & measurement

V , metres/second (ms^-1)

acceleration letter & measurement

A , metres/second^2 (ms^-2)

Time letter & measurement

T , seconds

how to get from Kmh^-1 to ms^-1

X1000 then divide by 3600

how to find velocity of D-T graphs

gradient of the graph

V-T graph, what does a flat line on the x axis mean

object is stationary

V-T graph, what does a vertical line mean anywhere other than the x axis

object moving with constant velocity

V-T graph, what does a positive linear line mean

object has constant acceleration

how to find acceleration on a V-T graph

gradient of line (negative gradient = deceleration)

how to find displacement on a V-T graph

area under line

D-T graph, what does a straight vertical line mean

object is stationary

D-T graph, what does a linear increase mean

constant velocity

D-T graph, what does a curved line mean

object is accelerating if getting stepper , decelerating if getting flatter

area of trapezium

1/2(a+b)h