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Vector A⃗  has magnitude 8.80 m and is in the xy-plane at an angle of 128 degrees...

Vector A⃗  has magnitude 8.80 m and is in the xy-plane at an angle of 128 degrees counterclockwise from the +x–axis (38 degrees past the +y-axis). The sum A⃗ +B⃗  is in the −y-direction and has magnitude 12.0 m.

a) What is the magnitude of vector B⃗ ?

b)What is the direction angle of vector B⃗  measured counterclockwise from the +x-axis?

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