Find {image} and the angle between u and v to the nearest degree: u = < 7, -7 > and v = < -8, -9 > Select the correct answer: 1. {image} 2. 3. 4. 1 2 3.

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Presentation transcript:

Find {image} and the angle between u and v to the nearest degree: u = < 7, -7 > and v = < -8, -9 > Select the correct answer: 1. {image} 2. 3. 4. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

True or False: The given vectors are orthogonal True or False: The given vectors are orthogonal. u = < -3, 1 > , v = < -2, 4 > True False 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

Find: {image} assuming u = 9 i + j, v = i - 7 j Find: {image} assuming u = 9 i + j, v = i - 7 j. Select the correct answer: 32 37 33 36 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

Find the component of u along v Find the component of u along v. u = -1 i + 3 j , v = -2 i + 7 j Choose the correct answer from the following. 1. 2. {image} 3. 4. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

42 ft-lb 46 ft-lb -46 ft-lb -42 ft-lb A constant force F = < 4, 6 > moves an object along a straight line from the point P(2,4) to the point Q(8,7). Find the work done if the distance is measured in feet and the force is measured in pounds. 42 ft-lb 46 ft-lb -46 ft-lb -42 ft-lb 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50