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The following visual represents two bodies: one with a uniform movement and the other with a uniformly accelerated movement. Velocity is represented by a vector.
Simultaneously with the movements we see:
- a data table:indicating the position of the body (s-s0) for each second that passes,
- the graph (s-s0) versus time.
Remember that when the moving body does not change its direction, displacement (s-s0) coincides with the space covered.
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In uniform movements bodies cover equal space in equal time. |
The graph of (s-s0) as a function of t is a straight line.
The gradient of the straight line (slope) is the velocity. The point of intersection with the vertical axis is the initial position. |
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In uniformly accelerated movements bodies cover more space as time passes. |
The graph of (s-s0) as a function of t is a parabola.
Velocity varies at each point; it is the slope of the straight line tangential to the curve at that point.
The point of intersection with the vertical axis is the initial position. |
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