The graph above is for an object which is thrown vertically upwards with an initial velocity of 20 m/s. In the time period 0-2 seconds – the object decelerates from 20 m/s to 0 m/s.

National 5 Velocity-time graphs Speed-time graphs Velocity-time graphs are used to describe the motion of objects which are moving in a straight line. They can be used to show acceleration and to ...