Determine the moment of forces, Mechanical Engineering

Determine the moment of forces:

The side of a square ABCD is 1.60 m long .Four forces equal to 6, 5, 4 and 8 N acts respectively along with the line CB, BA, DA, DB. Determine the moment of these forces w.r.t. O, the point of intersection of the diagonals of the square.

Solution

Taking moments w.r.t. O,

Resultant moment Mo = - 6 x2 - 5 x3 + 4 x1 + 8 × 0

Where x1, x2 and x3 are the perpendicular distances of the forces 4, 6, and 5 N, respectively from O, and force of 8 N has zero moment around O as its line of action passes out through this point.

Here,  x1 = x2 = x3 = 1.6/2 = 0.8 m

∴ M o  = - 6 (0.8) - 5 (0.8) + 4 (0.8) + 0

          = - 4.8 - 4.0 + 3.2

           = - 5.6 N-m or 5.6 N-m (clockwise)

Posted Date: 1/28/2013 4:53:54 AM | Location : United States







Related Discussions:- Determine the moment of forces, Assignment Help, Ask Question on Determine the moment of forces, Get Answer, Expert's Help, Determine the moment of forces Discussions

Write discussion on Determine the moment of forces
Your posts are moderated
Related Questions
Explain construction and working of Rope Brake Dynamometer? Determine Power also ?

Manufacturing Methods Of Ceramics The ceramics manufacturing consists in shaping along with or without pressure and firing to consolidate. The simplest and cheapest process of

Describe the basic concept of descriptive interface Descriptive interfaces are the window to other CAD systems, to the master databases or to the manufacturing activities. The

The critical Temperature of a gas is the highest temperature for which isothermal compression of the gas results in ? Will an adiabatic ?ash result in more, the same, or less va

Explan the Drive or traction unit   Hydrostatic drive is provided for traction with a two speed gear-box. High speed is for travelling and low speed for working. Speed is in

Q. Explain Moulding Sand for Non-ferrous Casting? The melting point of non- ferrous metal is much lower than that of ferrous metals. Therefore, the moulding sands for non-ferr

Dry Friction: Dry friction (also called as coulomb friction manifests when the contact surfaces are dry and there is tendency for the relative motion. Dry friction is fu

Q. Corrosion resistance of Zirconium? Zirconium offers excellent corrosion resistance to most oxidizing and reducing acids and virtually all alkalis. However, it is not resist


Airport Pavement: Airport pavements can be: (a)        Flexible, and (b)       Rigid (cement concrete). Since cement concrete pavements have transverse and longitudi