The vector A represented is by the pair of components A_x = -77 cm, A_y = 36 cm. (a) Find the magnitude of vector A. (b) Find the absolute angle of this vector.

A = 68 cm @ 179.6°

A = 85 cm @ 179.6°

A = 68 cm @ −0.44°

A = 85 cm @ −0.44°

A = 68 cm @ 154.9°

A = 85 cm @ 154.9°

A = 68 cm @ −25.1°

A = 85 cm @ −25.1°

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The vector A represented is by the pair of components Ax = -77 cm, Ay = 36 cm. (a) Find the magnitude of vector A. (b) Find the absolute angle of this vector.