False.
Torque = r×F
r is position vector
It should be vector rAC not rCA.
so,
answer is False.
Question 19 M = 7 x F Fiste When solving for the moment at point A...
The 2.9-kN force F is applied at point A. (a) Compute the moment of F about point O, expressing it both as a scalar (positive if CCW, negative if CW) and as a vector quantity. (b) Determine the coordinates of the points on the x- and y-axes about which the moment of F is zero. 1.7 m, a 3,b 7. AssumexA 1.4 m, yA y, m A (x y a F b ----x, m
n: Question 1 Use Moment Distribution method to determine the reactions of the continuous beam shown in Figure 1. Modulus of Elasticity, E, is constant and Moment of Inertia, l, is as shown. The reactions at B, D, E, F are rollers and at Cis a pin. Use five cycles in your solution. 2.1 . 2 kN/m SEN yer Shen 4KN A AC I 21 21 31 31 21 2m 4m 4m 8m 4m Ant 2m 2m Figures
Question 4 (20 points) Moment about a Line Find the moment about line segment OA caused by the applied force F. Note: Point A is located in the x-z plane; Point B is located in the x-y plane F=< -10, 30, -8 > KN 2 m
ent Question 7 Draw the shear and moment diagrams for the loaded beam. After you have the diagrams, answer the questions as a check on your work. 3 kN 6 kN/m 4 kN/m 3 m 4 m When x 1.5 m, V- When x 3.6m, V When x6.4 m, V when x = 9.8 m, V = kN kN m kN kN m M- kN kN·m kN kN m The maximum (absolute value) shear force in the beam is: Vmaxl...
Question 1 options:
Determine the moment of force F about an axis
extending between A and C. Express the result as
a Cartesian vector. Use F = {5i +
10j - 4k} kN, L1 = 5 m, L2 = 4 m,
and L3 = 3 m for your calculations.
Your answer:
x-component of the resultant moment in kNm (round the
result to 1 decimal place):
y-component of the resultant moment in kNm (round the
result to 1 decimal place):
z-component...
(a) Find the location x and the corresponding bending moment M at the one point between A and B at which the shear force equals zero. (b) Consider the entire beam and determine the maximum positive bending moment. (c) Consider the entire beam and determine the negative bending moment with the largest absolute value. Use the bending moment sign convention, so enter a negative value Additionally (d) Determine V and M in the beam at a point located 0.75 m...
Question 7 Draw the shear and moment diagrams for the loaded beam. After you have the diagrams, answer the questions as a check on your work 7 kN 5 kN 8 kN/m 5 kN/m 9 m 5 m Questions: When x 1.3 m, V- When x = 8.4 m, V = When x 12.4 m, V- when x = 22.1 m, V kN kN kN kN kN·m kN m kN·m kN m When x-1.3 m, V- When x-8.4 m, V-...
QUESTION 7 Indicate whether the following statement is true or false: dx For a general system of differential equations * = F(X), the vector field F(X) points perpendicular to the tangent vector of a solution trajectory going through the point X. dt o True False
For the figure, what is the moment caused by the two forces F1 and Fall about a line starting at point P and extending to point Q? Use a Cartesian vector approach to solve this problem. Hint: It would be easier to find the resultant vector first, but it is not necessary Given: F1 F1= (2881 +691j -759 k) lb FAB = 2.7 kip • Point Q has coordinates of: (-0.250,3.750,-1.583) ft. A 4'-2" Note: In the US Customary (also...
Solve the question
GROUP PROBLEM SOLVING II Given: F (80 k N and F= {-80k} N Find: The couple moment acting on the pipe assembly using Cartesian vector 300 mm notation. Plan: 1) Use M-rx F to find the couple moment 2) Set rs and F 180 k N. 3) Calculate the cross product to find M 0