Originally Posted by

**BiGpO6790** You are to make four straight-line moves over a flat desert floor, starting at the origin of an *xy* coordinate system and ending at the *xy* coordinates (-149 m, 81 m). The *x* component and *y* component of your moves are the following, respectively, in meters: (20 and 60), then (*bx* and -70), then (-20 and *cy*), then (-60 and -70). What are **(a)** component *bx* and **(b)** component *cy*? What are **(c)** the magnitude and **(d)** the angle (relative to the positive direction of the *x* axis) of the overall displacement?