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nikklg [1K]
3 years ago
7

Solve for the dog's displacement during segments A and B (0-20s)?

Physics
2 answers:
Katena32 [7]3 years ago
5 0

The dog walked 5 meters backwards in the first 10 seconds, then 5 meters forward from 10-20 seconds. After 20 sec he was back where he started. Displacement (20sec) = zero.

expeople1 [14]3 years ago
3 0

Explanation:

To find displacement using velocity - time graph, we need to find area under the curve during time period 0 to 20 seconds.

<u>Displacement</u> [ <em>area of Triangle</em> (b=10 units & h=1 units) - <em>area of trapezium</em> (sum of parallel sides=30 units & h=1 unit)

= (1/2 * 10 * 1) - (1/2 * 30 * 1)

= <u>- </u><u>10</u><u> </u><u>m</u>

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