Question

a car accelerates at a constant rate from zero to 9.7 m/s in 5.2 seconds and...

a car accelerates at a constant rate from zero to 9.7 m/s in 5.2 seconds and then slows to 5.1 m/s in the next 1.4 seconds. What is its average acceleration in m/s2 during the overall time period?

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