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MCV 4U

Unit 3 Test: Vectors and it’s applications

1.   Find the direction vector of the symmetric equation of  in 2D      [1K]

2.   Justify if the point (4,2)  is on the line L: =  (−2,7) + t(1, −1)     [1A1T]

3.   Find the parametric, vector, symmetric equations for the line through the points (3, -2, 3), and (4, 4, 6) [2K1A1T+1C]

4.   Determine vector equations and cartesian equation of the plane containing the points A(3 ,-2 ,3) B(4, 4, 6) and a vector  = [2, 1,0]                       [2A2T+1C]

5.   Calculate the following using these vectors: [+4C]

6.   A boat wishes to cross a river from point A to a point B directly across the river where the pathis perpendicular to the shore. The width of the river is 100m. The boat can travel at a speed of 12m/s relative to the water and the river is flowing at 3m/s [W].

a)   Draw a diagram to describe the situation.                                                                                                       [1A1C]

b)   Determine the direction that the boat should go so that it ends its journey at point B.                         [1A1T]

c)   Determine the speed of the boat relative to the shore.                                   [1A1T]

7.   Is the following expression   a vector, a scalar, or meaningless? Explain in English.    [1A3C]


8.   An object is hanging from two ropes. One has a tension of 200 N and makes an angle of 40° with the ceiling. The other rope makes an angle of 30° with the ceiling. Calculate the downward force cause by the mass of the object     [1A3T1C]

9.   Find the intersection for the following line with the coordinate axes and planes [x, y, z] = [3, -2, −3] + t[4, 4, −6]        [2A2T1C]

10. Determine the situation of the following two lines, and find a vector equation of the plane that includes these two lines      [2A2T2C]



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