Ask questions and get helpful responses.
Ask a New Question
  1. Questions

Physics

A beam of mass mb = 10.0 kg, is suspended from the ceiling by a single rope. It has a mass of m2 = 40.0 kg attached at one end and an unknown mass m1 attached at the other. The beam has a length of L = 3 m, it is in static equilibrium, and it is horizontal, as shown in the figure above. The tension in the rope is T = 637 N.

(a) Determine the unknown mass m1, at the left end of the beam.



(b) Determine the distance, x, from the left end of the beam to the point where the rope is attached. Note: take the torque about the left end of the beam.

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

  1. (a) From static equilibrium,
    (m1 + m2 + mb)g = T = 637 M
    Solve for m1

    (b) Now that you know all three masses, and that the weight of the beam acts through the center, do as they suggest and set the torque about either end of the beam equal to zero. That will let you solve for x. I cannot do this for you because you have not said which end has mass m1.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    drwls

  2. For B
    left side has m1
    Right side has m2
    picture looks like this
    ----------------------------------
    I T= 637
    I
    mb= 10kg I
    ------------------ ----------
    <------x---------->
    I I
    I I
    I I
    m1 m2
    ------------L=3m-------------

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    katie

  4. the uniform beam has a mass of 180 kg under equilibrium. determine the reaction at the supports

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    kurdy

Respond to this Question

First Name

Your Response

Similar Questions

  1. PHYSICS

    a 10cm long spring is attached to the ceiling. when a 2.6kg mass is hung from it, the spring stretched to a length of 15cm. what is the spring constant k how long is the spring when a 4.0 kg mass is suspended from it

  2. Physics

    A loudspeaker of mass 25.0 kg is suspended a distance of 1.00 m below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of 2.50 m . What is the tension in each of the cables?

  3. physics

    the problem reads this "A person with mass m1 = 62 kg stands at the left end of a uniform beam with mass m2 = 93 kg and a length L = 3.5 m. Another person with mass m3 = 65 kg stands on the far right end of the beam and holds a

  4. English

    1. The fan is above the desk. (Can we use 'above' any time when the fan is on the ceiling, for example, in each corner. When the fan is directly over the desk, can we use "over" as in the sentence? Can we use 'above' when the fan

  1. Physics!!! :)

    A student of mass 78 kg wants to walk beyond the edge of a cliff on a heavy beam of mass 180 kg and length 10 m. The beam is not attached to the cliff in any way, it simply lays on the horizontal surface of the clifftop, with one

  2. Physics

    A person with mass m1 = 57 kg stands at the left end of a uniform beam with mass m2 = 92 kg and a length L = 2.7 m. Another person with mass m3 = 67 kg stands on the far right end of the beam and holds a medicine ball with mass m4

  3. Physics - Torque

    A student of mas 70kg wants to walk beyond the edge of a cliff on a heavy beam of mass 300kg and length 10m. The beam is not attached to the cliff in any way, it simply lays on the horizontal surface of the cliff top, with one end

  4. science

    A uniform wooden beam of length 2m and weight 34N tests on two supports a and b placed at 40cm from either end of the beam two weight of 40N and 50N are suspended at the end of the beam . (i) :Draw adiagram to show the forces

  1. Physics

    A uniform beam 6.0m long and weighing 4kg rest on supports at P and Q placed left and right 1.0m from each end of the beam.weights of Mass 10kg and 8kg are placed near P and Q respectively one each end of the beam.calculate the

  2. Physics

    An unstretched spring with spring constant 37 N/cm is suspended from the ceiling. A 3.3 kg mass is attached to the spring and let fall. To the nearest tenth of a centimeter, how far does it stretch the spring?

  3. Physics

    A 10 m beam of mass 295 kg extends over a ledge. The beam is not attached, but simply rests on the surface. A 63 kg student intends to position the beam so that he can walk to the end of it. How far from the edge of the ledge can

  4. Physics

    A gymnast with a mass of 54 kg stands on the end of a uniform balance beam as shown in the figure. The beam is 5.00 m long and has a mass of 250 kg. Each support is 0.54m from the end of the beam. What is the force on the beam due

Still need help? You can ask a new question.