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Physics, 01.09.2019 04:30 dummynate

What is the average acceleration of a jet ski that goes from rest to 10 m/s west in 4 s? take the direction west to be positive, and east to be negative. a. 2.5 m/s2 b. -2.5 m/s2 c. 0.4 m/s2 d. -0.4 m/s2

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