In Perpendicular Direction #8211; Suppose the first force produces a SHM in X-direction given by x = A<sub>1</sub> sin ωt and the second produces a SHM in Y-direction given by y = A<sub>2</sub> sin (ωt + δ) The resultant path of the particle is an ellipse is given by The ellipse is traced inside the rectangle of sides 2A<sub>1</sub> and 2A<sub>2</sub> touching all its four sides.