Question

3) The table below shows how the speed of a train changed between two stations:

Time from start in seconds (s) 0 40 80 120 160 200 240

Speed of train in

meters / second. (m/s) 0 5 10 15 15 15 0

Use the data in the table to find


a) how long did the train spend


i) moving at constant speed: …………….. (1)


ii) accelerating: ………………. (1)


iii) decelerating: ………… (1)


b) Calculate


i) the initial acceleration. (2)


ii) the deceleration. (2)

Answer 1

Answer:

5+5=1vtfgh6gs1ufggbdhjdhjgfhffjo6

Explanation:

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