# Physics

posted by .

A person weighing 0.6 kN rides in an elevator that has a downward acceleration of 2.3 m/s^2.
The acceleration of gravity is 9.8 m/s^2.
What is the magnitude of the force of the elevator ﬂoor on the person?

• Physics -

m = 600/g = 61.2 kg
force up on object = F
force down on object = m g = 600 N

net force up = F-600

F = m a
F-600 = 61.2 (-2.3)
F = 600 - 141 = 459 N = .459 kN

## Similar Questions

1. ### Physics

A person stands on a scale in an elevator. As the elevator starts, the scale has a constant reading of 591 N. As the elevator later stops, the scale reading is 391 N. Assume the magnitude of the acceleration is the same during starting …
2. ### Physics

An elevator and its load have a combined mass of 1600 kg. Find the tension in the supporting cable when the elevator, originally moving downward at 12 m/s is brought to rest with constant acceleration in a distance of 42m. T=w which …
3. ### Physics

When I asked my teacher for help he told me this This is a logical puzzle. Having 75% of the typical weight means experiencing 75% of the typical gravity. The floor must be falling away with an acceleration of 25% of typical gravity. …
4. ### Phys

A person stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.74 of the person's regular weight. Calculate the magnitude of acceleration of the elevator. Find the direction …
5. ### physics

A person stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.71 of the person's regular weight. Calculate the acceleration of the elevator, and find the direction of …
6. ### Physics

A person stands on a scale in an elevator. As the elevator starts, the scale has a constant reading of 600 N. As the elevator later stops, the scale reading is 396 N. Assume the magnitude of the acceleration is the same during starting …
7. ### physics

An elevator is being lifted up an elevator shaft at a constant speed by a steel cable. All fricional effects are negligible. In this situation,forces on the elevator are such that?
8. ### Physics

A person is standing on a spring bathroom scale on the ﬂoor of an elevator which is moving up and slowing down at the rate of 2.73 m/s^2. The acceleration of gravity is 9.8 m/s^2. If the personâ€™s mass is 75.2 kg, what does …
9. ### Physics

A person of mass 50kg rides an elevator whose motion consist of (a)acceleration upward at 3m/s (b)constant velocity (c)acceleration downward at 3m/s Given that g=9.8m-2 down, find the person's weight during each stage of the lift ride?
10. ### Physics Dynamics

A person stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.69 of the person's regular weight. Calculate the magnitude of the acceleration of the elevator.

More Similar Questions

Post a New Question