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 $\overrightarrow { \mathbf { F } } _ { F }$ the floor exerts on the first person to the force $\overrightarrow { \mathrm { F } } _ { R }$ 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) $\overrightarrow { \mathrm { F } } _ { R }$ is greater than $\overrightarrow { \mathbf { F } } _ { F }$ ,but they have the same direction.
D) $\overrightarrow { \mathrm { F } } _ { R }$ is greater than $\overrightarrow { \mathbf { F } } _ { F }$ ,but they have opposite directions.
E) $\overrightarrow { \mathrm { F } } _ { R }$ is less than $\overrightarrow { \mathbf { F } } _ { F }$ ,but they have the same direction.

Question

Quizplus · Accepted Answer

Both forces are equal in magnitude (700 N) and have the same direction (upward), as they both counteract the gravitational force acting on each person.

Two People,each of 70 Kg Mass,are Riding in an Elevator F→F\overrightarrow { \mathbf { F } } _ { F }FF​

Two People,each of 70 Kg Mass,are Riding in an Elevator $\overrightarrow { \mathbf { F } } _ { F }$