A graph of speed vs time is a visual representation of the relationship between an object's speed and the time it takes to travel a certain distance. The speed is usually plotted on the y-axis, while time is plotted on the x-axis.
To create a graph of speed vs time, you need to collect data on an object's speed at different points in time. This data can be obtained through experiments or by using sensors. Once you have the data, you can plot it on a graph using appropriate units and scales.
A straight line on a graph of speed vs time represents constant speed. This means that the object is moving at the same speed throughout the entire duration of the trip.
Acceleration can be determined from a graph of speed vs time by calculating the slope of the line. The slope of the line represents the change in speed over time, which is the definition of acceleration. A steeper slope indicates a higher acceleration, while a flatter slope indicates a lower acceleration.
No, a graph of speed vs time cannot show changes in direction. This type of graph only shows the speed of an object at different points in time, regardless of its direction of motion. To show changes in direction, a graph of position vs time would be more appropriate.