Above is a velocity time graph of a moving car


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Observe the velocity-time graph of a moving car and answer the following questions a. At what time was the car stopped? b. At what time did the car have the greatest velocity? c. What was the greatest velocity? d. At what time(s) was the car accelerating? e. Calculate the distance covered by the car in first two hours f. Calculate the acceleration of the car from ‘E’ to ‘F’ g. How long the car does has zero acceleration? h. Describe the journey of the car from ‘C’ to ‘D’

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Answer:

a) 6th hour

b) 2nd - 4th hours

c) 80 km/h

d) 0 - 2 hours, 4 - 6 hours, 7 - 9 hours

e) 1/2 × 80 × 2 = 80 km

f) 60-0/9-7 = 60/2 = 30 km/h²

g) 4 hours

h) The car is retarding or decelerating


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