Speed-Time Graph

The rate of change of speed of a motion

Shown by drawing a speed-time graph

Speed-time graph

The vertical axis represents the speed of a motion.

Information needed to draw a speed-time graph

Speed-time table and equation that represents it

Distance

The length of the space between two points

Displacement

Vector distance from a fixed point measured in a certain direction

Speed

Rate of change in distance with respect to time

Velocity

Rate of change in displacement with respect to time

The area of trapezium A

That is the area under graph PQ represents the distance travelled in the period of t1 seconds

The area of rectangle B

The area under graph QR represents the distance travelled in the period of (t2 – t1) seconds

The area of triangle C

The area under graph RS represents the distance travelled in the period of (t3 – t2) seconds