Two Vectors And

question 44

Multiple Choice

Two vectors
And
Are given by
And
) The scalar product of
And a third vector
Is −16.The scalar product of
And
Is +18.The z component of
Is 0.What is the magnitude of
?

• A)7.8
• B)6.4
• C)3.6
• D)5.0
• E)4.8