Consider FIG-DD in the appendix.   Note: For Blocks “A” & “B” & “C”: The mass of “A” is 30 kg. The mass of “B” is 50 kg. The mass of “C” is 40 kg.

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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  • All problems will use the conventional Cartesian coordinate system unless noted otherwise.
    • Positive x-axis points to the right,
    • Positive y-axis points up,
    • Angles are measured CCW (counter-clock-wise) from the positive x-axis.
  • When a numerical input is necessary:

    • Enter your answer to 4 significant figures. Use a leading zero for numbers between -1 & 1.
      • Do NOT use Scientific Notation.
      • Angles must be reported with a minimum of 2 decimal places.
      • Report directions as positive angles.  For instance, 350 degrees, not -10 degrees.
      • Use the "standard" coordinate system unless noted otherwise.
    • Regarding the magnitude of an angle between two objects that could be reported with more than one value, submit the smaller value. 
    • Magnitude shall always be reported as a positive number.
    • Value shall be reported either as a positive or negative number based upon the application.  When reporting a valueinclude the sign.
  • Problem-DD:

    Consider FIG-DD in the appendix.

     

    Note:

    • For Blocks “A” & “B” & “C”:
      • The mass of “A” is 30 kg.
      • The mass of “B” is 50 kg.
      • The mass of “C” is 40 kg.
    • Blocks “A” & “B” are in contact.
    • Blocks “B” & “C” are in contact.
    • Blocks “C” & “inclined plane” are in contact.
    • The angle above the horizontal of the inclined plane is Θ = 30°.
    • The static coefficients of friction:
      • Surface-1: 0.30
      • Surface-2: 0.40
      • Surface-3: 0.45
    • The kinetic coefficients of friction:
      • Surface-1: 0.23
      • Surface-2: 0.37
      • Surface-3: 0.42

     

     

    FIND:

    • Calculate:
      • The maximum force of P, such that motion does not occur.
      • When this maximum P is applied, determine the remaining forces on the Blocks.
      • NOTE: Surface-3 is the surface between Block-C and the Inclined Plane.

CABLE
P.
FIG -DD
2)
Transcribed Image Text:CABLE P. FIG -DD 2)
QUESTION 18
Problem-DD
The magnitude of the angle between the Resultant Force on Surface-2 and a vertical line is _degrees.
QUESTION 19
Problem-DD
The magnitude of the angle between the Normal Force on Surface-2 and the Resultant Force on Surface-2 is
degrees.
QUESTION 20
Problem-DD
The magnitude of the resultant force, R, on Surface-2 is N.
Transcribed Image Text:QUESTION 18 Problem-DD The magnitude of the angle between the Resultant Force on Surface-2 and a vertical line is _degrees. QUESTION 19 Problem-DD The magnitude of the angle between the Normal Force on Surface-2 and the Resultant Force on Surface-2 is degrees. QUESTION 20 Problem-DD The magnitude of the resultant force, R, on Surface-2 is N.
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