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Physics Work,Power & Energy Level: Misc Level

At the bow of a ship on a stormy sea, a crwman conducts an experiment by standing on a bathroom scale. In calm waters, the scale reads 180 Ib. During the storm, the crewman finds a maximum reading of 224 Ib and a minimum reading of 121 Ib.

(a) Find the maximum upward acceleration experienced by the crewman.m/s2

(b) Find the maximum downward acceleration experience by the crewman. m/s2