Acar is moving at a constant speed of 14 m/s when the driver presses down on the gas pedal and accelerates for 14 s with an acceleration of 1.8 m/s 2 . what is the average speed of the car during the period?

acceleration of car is 1.8 m/s^2

time = 14 s

initial speed = 14 m/s

so the final speed is calculated by

so the total distance moved in this interval of time is

now the average speed is given as

so the average speed will be 26.6 m/s

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