Topic Content:
- Combining the Velocity-Time Graphs
The total distance travelled is the total area under the graph from the graph, the shape is that of a trapezium.
∴ Total distance covered = Area of a trapezium
= \( \frac{1}{2}\)(Sum of parallel sides) x h
= \( \frac{1}{2} \scriptsize (a \: + \: b) \: \times \: h\)
Also, breaking the graph into components, S1, S2, S3
S1 is a right angle triangle = distance covered = Area of a right angle triangle
S1 = \( \frac{1}{2} \scriptsize \: \times \: base \: \times \: height \\ = \frac{1}{2} \scriptsize bh\)
S2 = Area of a rectangle = total distance covered = L x b
S3 = Area of a right angle triangle = \( \frac{1}{2} \scriptsize \: \times \: base \: \: \times \: height \\ =\frac{1}{2} \scriptsize bh \)
∴ the total distance covered = S1 + S2 + S3
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