3
\includegraphics[max width=\textwidth, alt={}, center]{172e83d8-730c-4c18-aacb-ba2596886e41-04_412_601_260_772} A particle of mass 0.3 kg is held at rest by two light inextensible strings. One string is attached at an angle of \(60 ^ { \circ }\) to a horizontal ceiling. The other string is attached at an angle \(\alpha ^ { \circ }\) to a vertical wall (see diagram). The tension in the string attached to the ceiling is 4 N . Find the tension in the string which is attached to the wall and find the value of \(\alpha\).