1- Two vectors are given as u = 2î – 5j and v=-î +3j. a- Find the vector 2u + 3v (by calculation, not by drawing). (4 pts) b- Find the magnitudes lil and 17% of the two vectors. (4 pts) c- Calculate the scalar product uov. (5 pts) d- Find the angle 0 between the vectors ū and . (6 pts) e-Calculate the vector product u xv. (6 pts)
three forces act on a bracket as shown
two forces acting on a bracket
7. Three forces act on the bracket as shown. The resultant of these vectors acts along the u axis with a magnitude of 600 N. Determine the magnitude and direction of F1. F2 650 N Fi 45° F3 500 N 2. Two forces are acting on the bracket. The magnitude and direction of the vector F is 450 N and 60°, respectively. Find the magnitude of...
2. There are two forces acting at C. What is the resultant from the two forces? What is the moment about the point o generated from the resultant force? Find the component of the moment about point which goes in the direction of OA. (20 pts.) 1 ft 3 ft F = (-20i + 10j + 30k) lb B 2 ft F. =-101 - 30j + 50k) lb
5. Two forces Fi 2i+3j-4 k N and F2+2j +6 k N are acting on a particle simultaneously. Find out the (10 pts.) resultant force. Calculate the work done if the displacement of the particle be d-3 i + 2 j-k m.
2. There are two forces acting at C. What is the resultant from the two forces? What is the moment about the point o generated from the resultant force? Find the component of the moment about point O which goes in the direction of OA. (20 pts.) 1 ft ft 3 ft F = {-20i + 10j + 30k) lb B 2 ft F = (-10i - 30j + 50k) ID
5. Suppose the resultant of the three forces is zero. Fs Fi 170 lb 400 30° F-250 lb o The magnitude ofz direction component ofthe force 2, F2 o The magnitude of component along OA of the force 2, F2oA?ib o The magnitude of x direction component of the force 2, F2x o The magnitude of y direction component of the force 2, F2y ? o Force 1, F,, in Cartesian vector form? o Force 3, F3, in Cartesian vector...
Exercise 4.5:
Constants Two forces, Fi and F2, act at a point. The magnitude of Fi is 8.00 N, and its direction is an angle 65.0 ° above the x-axis in the second quadrant. The magnitude of F2 is 6.00 N, and its direction is an angle 53.7 ° below the x-axis in the third quadrant. We were unable to transcribe this imagePart C What is the magnitude of the resultant force? 2 Submit Request Answer
Problem 2.78 Part A The two forces Fi and F2 acting at A have a resultant force of FR={-180 k lb. (Figure 1) Determine the magnitude of F2. Express your answer to three significant figures and include the appropriate units. Value Units Submit Request Answer Figure 1 of 1 Part B Determine the coordinate direction angle a of F2. Express your answer using three significant figures. VA Tvec 30 ? 40 F 60 lb Submit Request Answer Part C Determine...
3. Determine the resultant force R of the two forces applied at point A. Fi = 3 kN 30 A F=7KN A.
Two forces, F? 1 and F? 2, act at a point, as
shown in the picture. (Figure 1) F? 1 has a magnitude of
9.20 N and is directed at an angle of ? = 65.0 ? above the
negative xaxis in the second quadrant. F? 2 has a
magnitudeof 5.80 N and is directed at an angle of ? = 53.9
? below the negative x axis in the third quadrant.
Part A
What is the x component Fx...