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Re: Apparent weight



Just to clear my head of the terminology being used, consider the following
scenarios. Draw free body diagrams for the mass and label the forces acting
on the mass. What variables do you use and what do you call them?

1. A mass is sitting on the floor of an elevator. The elevator may be at
rest, accelerating up, or accelerating down.

2. Same as Number 1, except the mass is on a scale in the elevator.

3. Same as Number 1, except the mass is hanging from a rope attached to the
ceiling of the elevator.

4. Same as Number 1, except the mass is on a chair and the chair is suspended
from ropes attached to the ceiling of the elevator.

5. The mass is in near earth orbit.

6. Move the above scenarios to the moon if you like.

Bob Carlson