Solve the problem.Find a vector v whose magnitude is 7 and whose component in the i direction is five times the component in the j direction.
A. v = 
i + 
j
or
v = - 
i - 
j
B. v = 
i + 
j
or
v = - 
i - 
j
C. v = 
i - 
j
or
v = - 
i + 
j
D. v = - 
i + 
j
or
v = 
i - 
j
Answer: B
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.
A. 23
B. 
C. 21
D. 
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