Question

plz answer my question guy's plzzz help me :(​

Answer 1

1. From 0 to 10
2. From 10 to 20
3. 7.5m
4. 7.5m
5. 45m/s

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Answer 2

Answer

(a) The bus is accelerating in the period of 1-10 minutes.

(b) The bus is decelarating in the period of 11-20 minutes.

(c)  The distance covered during the acceleration is area of the triangle = (1/2) × (base)×(height)=1/2 × 10 × 40 =200m.

(d) The distance covered during the deceleration is area of the triangle = (1/2) × (base) × (height) = 1/2 × 10 ×40 = 200m.

(e) Average Speed = Total distance/Total Time

                                = 1/2 × 20 ×40 =400/20

                                =400/20 = 20m/s

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