Question 1
Instructions: On occasion, the notation
= [A, θ] will be a shorthand notation for
.
A vector,

, when added to the vector

yields a resultant vector which is in the positive
y direction and has a magnitude equal to that of

. What is the magnitude of

?
◦
3.2
◦
6.3
◦
9.5
◦
18
◦
5
Question 2
Instructions: On occasion, the notation
= [A, θ] will be a shorthand notation for
.
If vector

is added to vector

, the result is

. If

is subtracted from

, the result is

. What is the magnitude of

?
◦
5.1
◦
4.1
◦
5.4
◦
5.8
◦
8.2