The following figure shows an equilateral triangle, each side of which has length of 2.00 cm. Point charges are fixed to each corner, as shown. The `4.0 mu C` charge experiences a net force due to the charges `q_(A)` and `q_(B)`. This net force points vertically downward and has a magnitude of 405 N. Determine the magnitudes and algebraic signs of the charges `q_(A)` and `q_(B)`.

Options

A. `q_(A) = -2.60 mu C`, `q_(B) = -2.60 mu C`
B. `q_(A) = +5.20 mu C`, `q_(B) = +5.20 mu C`
C. `q_(A) = -4.50 mu C`, `q_(B) = -4.50 mu C`
D. `q_(A) = 2.60 mu C, q_(B) = -4.50 mu C`

Answer

A