A car moves at a steady 15 m/s for 9 s. Describe its velocity-time graph, and use it to find the…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
A car moves at a steady for . Describe its velocity-time graph, and use it to find the displacement.
Need a reminder? The key ideaShow
On a distance-time (or position-time) graph the slope is the velocity. On a velocity-time graph the slope is the acceleration and the area under the line is the distance.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. The graph. A flat line at from to ; the slope, the acceleration, is zero.
Step 2. Area. .
Answer: A flat line; .
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