Dot Products of Vectors Answers
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What is the resultant of a and b if a = 3i + 3j and b = 3i − 3j?
A
6i + 0jB
9i − 9jC
6i + 6jD
9i + 9j2
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What is the resultant of a and b if a = –2i − 5j and b = i − 4j?
A
–i − 9jB
9i − 9jC
6i + 6jD
9i + 9j3
What is the magnitude of b?
A
3B
–3C
6D
–64
Which pair of vectors below, if summed, would create a state of equilibrium (a resultant of 0i + 0j)?
A
0i + 0j and 2i − 2jB
2i + 2j and 2i − 2jC
2i + 2j and -2i − 2jD
2i + 0j and 0i + 2j
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