Mathematics, 15.01.2020 23:31 turner639237

After 30 s, a runner is sprinting at 3 m/s. but, 10 s later, the runner is sprinting at 3.8 m/s. what is the runner's acceleration during this time?

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After 30 s, a runner is sprinting at 3 m/s. but, 10 s later, the runner is sprinting at 3.8 m/s. wha...