GMS VECTORS REVISION Multiple Choice 91 If = 9i 4j and = 5i 4j, the magnitude of is equal to – – 5 A B 4 C 3 D 4 E 5 92 If = 8i 6j, then the unit vector in the direction of is a a – A 10 B 2 C (8i + 6j) (8i 6j) D E (6i 8j) 93 The vector has a magnitude of 12 and makes an angle of 60 measured anticlockwise from the positive axis. When expressed in terms of and x i j, would be written as A 6i + 6j B 6i 6j – C 6i + 6 j D 6i 6 j E 12i + 6 j 94 If 2j + 3k and = 2j 5k, then 2a + is equal to a = i b b 6j + 11k A B 2i 6j + 11k C 2i 4j 2k D 2i 2j + k E + 8k i 95 = + 3j and = 4i 2j. If = , is the vector i A 2i 4j B 3i + j C 2i + 8j D 4i 4j E 7i j 96 If 2j + 3k and = 2j 5k, then 2a is equal to a = i b b A 6j + 11k B 2i 6j + 11k C 2i 4j 2k D 2i 6j + k + 8k E i 97 = 3j and = 4i 2j. If = , is the vector i A 2i 4j B 3i + j 5i 5j C
GMS VECTORS REVISION Multiple Choice 91 If = 9i – 4j and = 5i – 4j, the magnitude of is equal to A 5 B 4 C 3 D 4 E 5 92 If a = 8i – 6j, then the unit vector in the direction of a is A 10 B 2 C (8i + 6j) D (8i 6j) E (6i 8j) 93 The vector has a magnitude of 12 and makes an angle of 60 measured anticlockwise from the positive x axis. When expressed in terms of i and j, would be written as A 6i + 6j B 6i – 6j C 6i + 6 j D 6i 6 j E 12i + 6 j 94 If a = i 2j + 3k and b = 2j 5k, then 2a + b is equal to A 6j + 11k B 2i 6j + 11k C 2i 4j 2k D 2i 2j + k E i + 8k 95 = i + 3j and = 4i 2j. If = , is the vector A 2i 4j B 3i + j C 2i + 8j D 4i 4j E 7i j 96 If a = i 2j + 3k and b = 2j 5k, then 2a b is equal to A 6j + 11k B 2i 6j + 11k C 2i 4j 2k D 2i 6j + k E i + 8k 97 = i 3j and = 4i 2j. If = , is the vector A 2i 4j B 3i + j C 5i 5j
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