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Physics, 09.10.2019 20:30 jjgccc

Abriefcase sits stationary in an elevator. the mass of the briefcase if 4.5 kg. the elevator then begins accelerating upwards at 1.10 m/s^2. what is the normal force on this briefcase during this acceleration?
44.155 n
38.971 n
51.141 n
48.985 n

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