For a free body diagram shown in the figure, the four forces are applied in the ‘x’ and ‘y’ directions. What additional force must be applied and at what angle with positive x-axis so that net acceleration of body is zero?
1
√2 N, 45°
2
√2 N, 135°
3
\(\rm \frac{2}{\sqrt3}N\), 30°
4
2 N, 45°