A woman weighing (6.0 x 10^2)N,is riding an elevator from the 1st to the 6th floor. As the elevator approaches the 6th floor, it decreases its upward speed from 8.0 m/s to 2.0 m/s in 3.0 s. What is the average force exerted by the elevator floor on the woman during this 3.0 interval?

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