1. The uniform bar of mass m and length l has a small frictionless roller at its upper end B. The coefficients of static and kinetic frictions between the horizontal surface and the bar are 0.4 and 0.2, respectively. Determine the minimum angle 0 for which equilibrium is possible. B m, l A

Q: Give an example of a flexure formula?

A: The flexure formula is also known as the flexure bending equation and is defined as; Where, M is…

Q: How can we determine the deformation of an axially loaded member?

A: Whenever a member is loaded axially there is change in the dimensions of the member. Length of the…

Q: 6- Justify the selection of standard rolled steel sections in mechanical designs.

A: The properties required for mechanical design are: Strength- The strength is measured by the…

Q: Drawing: A round rod of annealed 302 stainless steel (K = 1300 MPa and n = 0.3) is being drawn from…

A: Given:To find:

Q: Define the Temperature Scales?

A:

Q: How can we calculate the maximum stress?

A: Stress: Stress is defined as the developed force in the specimen per unit area when that specimen is…

Q: Why should the thermal stresses be considered in design?

A: The stresses generated due to rapid heating or cooling of the structure are known as thermal…

Q: Describe the impact loading?

A: It is a kind of loading where the load is applied for a very small amount of time. In this loading,…

Q: Please match Heat-Treated Steels with their hardness HB numbers, according to the charts shown…

A:

Q: Distinguish between the Normal and Shear Stress Components?

A: Normal and shear stress components are distinguished by their direction with respect to the area on…

Q: A compression test is performed on a 2” diameter by 5” long bar of an unknown metal.  At the end of…

A: Given:d1=2 inl1=5 inl2=3.5 inK=250 MPan=0.4a)Volume before compression=volume after compression…

Q: 5) Draw the stress-strain curve and gives the stress and strain equations for both Engineering and…

A:

Q: How is the Force Method of Analysis applied?

A: The force method of analysis is a method that is used to determine the unknown forces form the…

Q: Can the External forces be applied to a body as distributed or concentrated loadings?

A: Yes, external forces can be distributed or concentrated.

Free Body Diagram

The system of forces acting on a body tends to either rotate it or make the body undergo motion. In general, when an external agent exerts a force on a body, the body undergoes translational motion and rotational motion. The body has six degrees of freedom under the influence of that force. Here, three degrees of freedom are from the translational motion while the other three are from the rotation motion. However, sometimes the bodies are not allowed to undergo any motion and are fixed, under such conditions the body is said to be constrained.