Question

Study the velocity-time graph and calculate. (a) Identify the type of motion represented by AB and BD (b) The acceleration from A to B (c) The acceleration from B to C (d) The distance covered in the region ABE (e) The distance covered in the region BCFE

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

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Explanation:

(a)AB-uniformly accelerated ; Bd-uniformily retarted

(b) a = (25 - 0) / (3 - 0) = 8.3 m/s2

(c) a = (20 - 25 ) / (4 - 3) = -5 m/s2

(d) Distance = Area of triangle ABE = 1 / 2 × 3 × 25 = 37.5 m  

(e) This Distance = Area of trapezium BCFE  

= 1 / 2 (25 + 20) × (4 - 3) = 22.5 m

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