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Speed-time graphs show speed on the vertical axis and time on the horizontal axis. The gradient of a speed-time graph represents acceleration because: gradient = \ ( \frac {\text {change in...
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In real-life contexts, the intercept, gradient and area...
- Real-life Graphs
All real-life graphs can be used to estimate or read-off...
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How to read a position vs. time graph. Using the graph to determine displacement, distance, average velocity, average speed, instantaneous velocity, and instantaneous speed. Created by David SantoPietro.
Distance-time graphs show distance from a fixed point at different times. Distance is on the vertical axis, and time is on the horizontal axis. The gradient of the graph is the speed. A positive gradient represents the object (or person) moving away from the starting point.
The speed/time graph would be the absolute value of the velocity/time graph. When velocity is negative, the area under the curve would also be negative. To find the average speed, you'll need to change that negative area to a positive.
Example 1: completing a speed-time graph. The speed-time graph shows the speed of a car for the first 10 seconds of a journey. After the first 10 seconds the car maintains its speed for 20 seconds. It then decelerates at a constant rate and stops after a further 15 seconds. Complete the speed-time graph for the journey of the car.
Let's learn how to calculate accelerations from velocity-time graphs. We will also get some intuition behind why slope or steepness of a velocity-time graph represents acceleration. Created by Mahesh Shenoy .
Speed-time graphs show speed on the vertical axis and time on the horizontal axis. The gradient of a speed-time graph represents acceleration because \(gradient =...