Velocity-time graphs show how the velocity (or speed ... that the vehicle is accelerating at an increasing rate – non-uniform acceleration. A line upwards curving to become flat means that ...

2}\). A negative gradient shows the rate of 'slowing down' or deceleration. Velocity-time graphs show velocity on the vertical axis. Acceleration is still represented by the gradient.

The first equation can be derived using a velocity-time graph for ... velocity of v and acceleration of a. The velocity of the body changes from A to B in the time t at a uniform rate.

5.The acceleration of an object at a particular time is the slope of the velocity-time graph at that instant of time. For uniform motion, acceleration is zero and the x-t graph is a straight line ...