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Math·Problem-Solving and Data Analysis·Ratios, rates, proportional relationships, and units

hard

During the first $8.00$ seconds after a car started moving, its speed increased to $11.0$ meters per second. From $8.00$ seconds to $14.0$ seconds after the car started moving, its speed increased from $11.0$ meters per second to $23.0$ meters per second. To the nearest hundredth, what is the positive difference between the average rate of change of the speed of the car, in meters per second per second, during the first $8.00$ seconds after the car started moving and the average rate of change of the speed of the car, in meters per second per second, from $8.00$ seconds to $14.0$ seconds after the car started moving?

1

0.63

2

.63