Science, asked by sanskritinanda33, 8 months ago

please answer this question as soon as possible

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Answered by sagarsingh2002

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Answer:

1.initial speed is 10km/hr

2.maximum speed is 30km/hr

3.AB shows acceleration and CD shows retardation

4.acceleration =20/3...retardation = 30

5. BC

6.distance travelled in seven hours =area under the curve=180km

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