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Two People, Each of 70 Kg Mass, Are Riding in an Elevator

Question 8

Multiple Choice

Two people, each of 70 kg mass, are riding in an elevator. One is standing on the floor. The other is hanging on a rope suspended from the ceiling. Compare the force FF\overrightarrow{\mathbf{F}}_{{F}} the floor exerts on the first person to the force FR\overrightarrow{\mathbf{F}}_{{R}} the rope exerts on the second person. Which statement is correct?


A) They are equal and opposite in direction.
B) They are equal and have the same direction.
C) FR\overrightarrow{\mathbf{F}}_{{R}} is greater than FF\overrightarrow{\mathbf{F}}_{{F}} , but they have the same direction.
D) FR\overrightarrow{\mathrm{F}}_{R} is greater than FF\overrightarrow{\mathbf{F}}_{{F}} , but they have opposite directions.
E) FR\overrightarrow{\mathrm{F}}_{R} is less than FF\overrightarrow{\mathbf{F}}_{{F}} , but they have the same direction.

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