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Question

In the graph depicted below, which time intervals, if any, indicate moments when the riverboat maintained a constant velocity over time?

Accepted Answer

between t = 60 s and t = 80 s

Answer

between t = 0 s and t = 30 s

Answer

between t = 80 s and t = 100 s

Answer

between t = 40 s and t = 60 s