Scales and Elevators

Suppose a person with a mass of 60 kg is in an elevator standing on a scale.

Use a system schema and free body diagrams of the scale and the person to determine what the scale would read for the following situations:

A. If the elevator is descending at 4.9 m/s.

B. If the elevator has a downward acceleration of 4.9 m/s².

C. If the elevator has an upward acceleration of 4.9 m/s².