Question

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Answer 1

Answer:

(a) First the object experiences uniform speed and is at rest

(b)The object experiences uniform acceleration and the constant velocity

(c)1. 100m/s

  2. a = v-u/t = 100-0/5 = 20m/s^2

  3. a = v-u/t = 0-100/5 = -20m/s^2

  4. 0 m/s^2

  5. D = area of 2 triangles + area of a rectangle

          = 1/2*5*100 + 1/2*5*100 + 100*10

          = 250 + 250 + 1000

          = 1500m or 1.5km

Hope it helps!