A Vector $\overrightarrow { \mathrm { A } }$ Is Added To

question 18

Multiple Choice

A vector $\overrightarrow { \mathrm { A } }$ is added to $\overrightarrow { \mathbf { B } } = 6 \hat { \mathbf { i } } - 8 \hat { \mathbf { j } }$ .The resultant vector is in the positive x direction and has a magnitude equal to that of $\overrightarrow { \mathrm { A } }$ .What is the direction of $\overrightarrow { \mathrm { A } }$ ?

• A)74\(\degree\)
• B)100\(\degree\)
• C)-81\(\degree\)
• D)-62\(\degree\)
• E)106\(\degree\)

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