Body U with mass 5m is stacked on the top body W with mass m, and released. The bodies are in contact along the frictionless interface at 45 to the vertical. The body U is in contact with the frictionless vertical wall. Body W lies on the floor with coefficient of friction u. Relevant dimensions are shown in the figure. Express the results in terms of given quantities: m, g, h and u (except when u is given numerically). h U: 5m C You need not evaluate sin 45° = cos 45° = 2/2. 45 Draw the free body diagrams for the two bodies. D W: m 2). Find the critical coefficient of friction . (i.e., 3h the minimal coefficient friction to prevent sliding). Let u< Me. The system moves. Write the condition that the velocities of U and W must satisfy for the two bodies to remain in contact.

Body U with mass 5m is stacked on the top body W with mass m, and released. The bodies are in contact along the frictionless interface at 45 to the vertical. The body U is in contact with the frictionless vertical wall. Body W lies on the floor with coefficient of friction u. Relevant dimensions are shown in the figure. Express the results in terms of given quantities: m, g, h and u (except when u is given numerically). h U: 5m C You need not evaluate sin 45° = cos 45° = 2/2. 45 Draw the free body diagrams for the two bodies. D W: m 2). Find the critical coefficient of friction . (i.e., 3h the minimal coefficient friction to prevent sliding). Let u< Me. The system moves. Write the condition that the velocities of U and W must satisfy for the two bodies to remain in contact.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.

Question

Body U with mass 5m is stacked on the top body W with
mass m, and released. The bodies are in contact along the
frictionless interface at 45 to the vertical. The body U is
in contact with the frictionless vertical wall. Body W lies
on the floor with coefficient of friction u. Relevant
h
dimensions are shown in the figure. Express the results in
U: 5m
terms of given quantities: m, g, h and µ (except when u is
given numerically).
You need not evaluate sin 45° = cos 45° = 2/2.
45
1 Draw the free body diagrams for the two bodies.
W: m
Find the critical coefficient of friction µ. (i.e.,
the minimal coefficient friction to prevent sliding).
3h
31 Let u<He. The system moves. Write the
condition that the velocities of U and W must satisfy for the two bodies to remain in contact.

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