Situation 6. Determine the distance between the end points A and B on the wire by first formulating a position vector from A to B and then determining its magnitude.
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- 18. True or False: a. A unit vector always has a magnitude of 1. b. A unit vector is unitless. 19. Given the vector P = 3î - 4ĵ+ 12k determine: = Unit vector along line of action of vector P, ûp= b. Direction cosine angles (degrees) for vector P, B = a. α = Y =What are pseudo vectors? Why are they called axial vectors?Cx = 0, Cy= A Sin 60o+ B Sin 30o Ax and By point in the positive x and y directions, respectively. Find the orientations of the vectors ?⃗ ??? ?⃗ A→ and B→ with respect to the x and y axis? PreviousNext
- If A · B = 0 and A x B = 0 what can we say about Aand B? Select one: а. None of the other options b. A is perpendicular to B c. A is proportional to B d. A is opposite to B e. A is parallel to BThree vectors A, B and C add together to yield zero, i.e. A + B + C = 0. The vectors A and C point in opposite directions and their magnitudes are related by the expression: A = 2C. Which one of the following conclusions is correct? A. A and B have equal magnitudes and point in opposite directions. B. B and C have equal magnitudes and point in the same direction. C. A and B point in the same direction, but A has twice the magnitude of B. OD. B and C point in the same direction, but C has twice the magnitude of B. E. A and BI 2 BE Suppose you walk 13.0 m straight west and then 21.0 m straight north. How far are you from your starting point, 25 m what is angle of the resultant vector, 57.5 O and what is the compass direction of a line connecting your starting point to your final position? 58 X °W of N
- Determine the magnitude and orientation theta of FB so that the resultant force is directed along the positive y axis and has a magnitude of 1600 N. Where FA= 750Nvector A = 7.6 m, 73 degrees W to N vector B = 3.5 m, 35 degrees N to WVector A measures 1.20m and angles 30° above the x-axis in the first quadrant. Vector B extends 3.20m and is angled 30° beneath the x-axis in the fourth quadrant. a. Determine the magnitude and direction of A + Bb. Determine the magnitude and direction of A – B