physics

posted by .

a 60 kg object is attached to one end of a 40 kg steel tube 2.4 m long. what is the distance from the loaded end to the balance?

  • physics -

    I don't know what "to the balance" means. Do you mean the fulcum to the load?

    summing moments about the "one end"

    down forces=40+60=100kg
    up forces at the fulcrum 100kg

    summing moments about the end.
    40(2.4/2)+60x-100y=0 where x is the distance from the end to the load, and y is the distance from the end to the fulcrum.

    summing moments about the fulcrum:
    40(1.2-y)=60(y-x) draw the picture to see that.
    so you now have two equations, two unknowns, solve for x

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    what kinetic energy does an electron acquire if it falls through a potential difference of 21,000 volts in a TV picture tube?
  2. Physics

    The water level in a vertical glass tube 1.40 m long can be adjusted to any position in the tube. A tuning fork vibrating at 440 Hz is held just over the open top end of the tube, to set up a standing wave of sound in the air-filled …
  3. physic

    An air column in a glass tube is open at one end and closed at the other by a movable piston. The air in the tube is warmed above room temperature, and a 350 Hz tuning fork is held at the open end. Resonance is heard when the piston …
  4. Physics

    A compact 60-kg object is attached to one end of horizontal 40-kg uniform steel tube 2.4m long. What is the distance from the loaded end to the center of gravity of the object-tube system?
  5. Physics

    To measure how far below the ocean surface a bird dives to catch a fish, a scientist uses a method originated by Lord Kelvin. He dusts the interiors of plastic tubes with powdered sugar and then seals one end of each tube. He captures …
  6. physics

    A hole is drilled with smooth sides straight through the center of the earth to the other side of the earth. The air is removed from this tube (and the tube doesn't fill up with water, liquid rock or iron from the core). An object …
  7. Phyiscs

    A hollow copper tube (diameter = 4.01 cm) is sealed at one end and loaded with lead shot to give a total mass of 0.218 kg. When the tube is floated in pure water, what is the depth, z, of its bottom end?
  8. English: Faulty Coordination

    Rewrite the over coordinated sentences that follow, changing clauses into phrases or into single words. where appropriate, break the over coordinated sentence into two sentences. 1. The doctor inserted one end of a long tube into my …
  9. physics

    A bar 4.0 m long weighs 400. N. Its center of gravity is 1.5 m from one end. A weight of 300. N is attached at the heavy end and a weight of 500. N is attached at the light end. What are the magnitude, direction, and point of application …
  10. Fluid mechanics

    A vertical tube 3 meters long with one end closed, is inserted vertically with the open end down into a tank of water until the open end is submerged to a depth of one meter. What is the height of water inside the tube?

More Similar Questions