2. Circle the answer. True/False: For both central and oblique impact problems, the following equations apply along the line of impact (for this problem, assume LoI is along x-direction):
$$\Sigma m(v_x)_1 = \Sigma m(v_x)_2$$
$$e = [(v_{Bx})_2 - (v_{Ax})_2]/[(v_{Ax})_1 - (v_{Bx})_1]$$