Elevator Apparent Weight

A 80.0 \(\rm{kg}\) person takes an elevator from the first floor to the third floor of the Arts building. The elevator accelerates (upward) at 8 \(\rm{m/s^2}\) for 1 \(\rm{s}\), maintains a constant velocity of 8\(\rm{m/s}\) for 1 \(\rm{s}\) and then slows to a rest in 1 \(\rm{s}\).

Part 1

The person’s apparent weight is:

Answer Section

• 784\(\rm{N}\) for all time intervals.

• 1424\(\rm{N}\) for the first second, 784\(\rm{N}\) for the second second, and 144\(\rm{N}\) for the third second.

• 794\(\rm{N}\) for the first second, 784\(\rm{N}\) for the second second, and 789\(\rm{N}\) for the third second.

• 784\(\rm{N}\) for the first second, 144\(\rm{N}\) for the second second, and 1424\(\rm{N}\) for the third second.

Attribution

Problem is licensed under the CC-BY-NC-SA 4.0 license.