PhysicsMotionVelocity Time Graphs – Part 1

Velocity Time Graphs – Part 1

Table of Contents

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    • Velocity–Time Graph
    • Representing Constant Velocity on a Velocity–Time Graph
    • Displacement of a Body Moving at a Constant Velocity
    • Summary
    • Did You Know?
    • What’s Next?

    In the previous segment, we learnt about distance–time graphs for uniform and non- uniform motion. In this segment, we will learn about the velocity–time graph for constant velocity.

    What is a Velocity–Time graph?

    A Velocity–time graph is a 2-dimensional graph of velocity versus time. In this graph, time is represented along the X-axis and velocity is represented along the Y-axis.

    Velocity–Time Graph

    How to represent constant velocity on a velocity-time graph?

    We know that a body moving with constant velocity moves with the same velocity in equal intervals of time.

    This means that the graph of constant velocity of such a body is nothing but a straight line parallel to the X-axis or the time-axis.

    A constant velocity graph of body moving at ?? ?

    ?

    How to find the displacement of a body moving at a constant velocity?

    We know that displacement is the product of velocity and time. On a velocity-time graph, we find the displacement of a body by measuring the area between the velocity-time graph and the time axis.

    Example of velocity-time graph

    Consider, a vehicle is travelling at a constant velocity of at 10 ?, parallel to the X-axis.

    ?

    10 ?.

    ?

    The graph is a straight line drawn

    Now, we wish to find the displacement of the body at 4 seconds.

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