Save guides, add subjects and pick up where you left off with your BBC account. The gradient of a velocity-time graph at a particular time gives the acceleration of the object at that time.

Acceleration (a)- the rate of change of an object’s velocity over time. Displacement (s)- the total ... can be derived using a velocity-time graph for a moving object with an initial velocity ...

They are afraid to embrace the power of the graph ... then detects motion over these lines to give position-time data. Again using the quadratic fit I can find the acceleration.

These graphs also show if the object is moving at a constant speed or accelerating, decelerating, or still. Acceleration ... over the whole journey is the total distance divided by the total time ...