A person weighing 0.70 kN rides in an elevator that has an upward acceleration of 1.5 m/s2. What is the magnitude of the force of the elevator floor on the person?
A. 0.11 kN
B. 0.81 kN
C. 0.70 kN
D. 0.59 kN
E. 0.64 kN
Answer: B
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