1. Questions

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 and stopping.

A)Determine the wieght of the person.
B) Determine the mass of the person
C)Determine the magnitude of acceleration of the elevator.

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
Kate

  1. scale= mg+ma when going accelerating upwards, = mg-ma when acceleration is downward (as when going up and slowing).

    396=m(g)
    so you can solve for mass then.

    600=396+ma and you can solve for a.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    👤
    bobpursley

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    A 60.0 kg person rides in elevator while standing on a scale. The elevator has an acceleration 2.00 m/s^2 upward. What is the reading on the scale?

  2. Physics

    A 75.0-kg person stands on a scale in an elevator. What does the scale read (in N) when the elevator is at rest? What does the scale read (in N) when the elevator is climbing at a constant speed of 3.0 m/s? What does the scale

  3. 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.

  4. Physics

    A 91 kg man stands on a spring scale in an elevator. Starting from rest, the eleva- tor ascends, attaining its maximum speed of 1.7 m/s in 1.07 s. It travels with this constant speed for the next 5 s, undergoes a uniform negative

  1. Physics

    A man who weighs 900N stands in an elevator on a scale and it reads 1000N. What direction is the elevator accelerating and what is the acceleration of the elevator?

  2. Physics

    A 650 N student stands on a scale in an elevator. As the elevator starts to move, the scale reads 780 N. a. Find tha acceleration. b. Is the elevator going up or down?

  3. physics

    A person who normally weighs 700 N is riding in a rather swift elevator that is moving at a constant speed of 9.8 m/s. If this person is standing on a bathroom scale inside the elevator, what would the scale read?

  4. physics

    Struggling with this problem: A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale reads 848 N. As the elevator starts to move up, the scale reading increases to 968 N, then

  1. physics

    A 70kg man stands on a bathroom scale in an elevator. As the elevator starts moving, the scale reads 90kg Is the elevator acceleration up or down, is the elevator moving up or down?

  2. physics

    A 69 kg person is standing on a bathroom scale (calibrated in Newtons) in the middle of an elevator. Determine the reading on the scale when the elevator is moving downward at a constant velocity of 2.2 m/s. (3T, 1C) please help

  3. Physics

    "A fish hangs from a spring scale supported from the roof of an elevator. If the elevator has an upward acceleration of 1.2m/s^2 and the scale reads 200N, under what circumstances will the scale read 150N? What will the scale read

  4. physics

    In Example 5.8, we investigated the apparent weight of a fish in an elevator. Now consider a 72.0 kg man standing on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.20 m/s

View more similar questions or ask a new question.