A car is traveling along a straight road at a velocity of +28.8 m/s when its engine cuts out. For the next 1.42 seconds, the car slows down, and its average acceleration is a,. For the next 3.20 seconds, the car slows down further, and its average acceleration is a,. The velocity of the car at the end of the 4.62-second period is +14.9 m/s. The ratio of the average acceleration values is ā,/ä, - 1.84. Find the velocity of the car at the end of the initial 1.42-second interval.
A car is traveling along a straight road at a velocity of +28.8 m/s when its engine cuts out. For the next 1.42 seconds, the car slows down, and its average acceleration is a,. For the next 3.20 seconds, the car slows down further, and its average acceleration is a,. The velocity of the car at the end of the 4.62-second period is +14.9 m/s. The ratio of the average acceleration values is ā,/ä, - 1.84. Find the velocity of the car at the end of the initial 1.42-second interval.
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Transcribed Image Text:A car is traveling along a straight road at a velocity of +28.8 m/s when its engine cuts out. For the next 1.42 seconds, the car slows
down, and its average acceleration is a,. For the next 3.20 seconds, the car slows down further, and its average acceleration is a,. The
velocity of the car at the end of the 4.62-second period is +14.9 m/s. The ratio of the average acceleration values is ā/ā, 1.84. Find
the velocity of the car at the end of the initial 1.42-second interval.
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