Jia is travelling to her workplace by her car. Her car is moving along a straight road at a steady speed of 40 m/s. At one point she increases the velocity of the car at the rate of 5 m/s2 for 3 s. Then the final velocity of the car would be.
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Answer: 55 m/s
Explanation: acceleration = change in velocity / time taken
5 = (X - 40) / 3
15 = X - 40
X = 55 m/s
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