Margy is trying to improve her cardio endurance by performing an exercise in which she alternates walking and running 100.0 m each. If Margy is walking at 1.4 m/s and accelerates at 0.20 m/s2 during one of the running portions, what is her final velocity at the end of the 100.0 m? Round your answer to the nearest tenth.

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okay so

she starts at 1.4 m/s
and accelerates 0.2 m/s^2 over a distance of 100.0m

now okay lets suppose it takes t seconds for her to run this 100.0m while she is accelerating

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