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A firefighter with a weight of 745 N slides down a vertical pole with an acceleration of 2.90 m/s2, directed downward.

(a) What are the magnitude and direction of the vertical force (use up as the positive direction) exerted by the pole on the firefighter?

(b) What are the magnitude and direction of the vertical force (use up as the positive direction) exerted by the firefighter on the pole?

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