We know, \\\\(v^2=u^2-2as\\\\)Given, Initial velocity of car 1, \\\\(u_1=15\\ m/s\\\\), Acceleration, \\\\(a=3\\ m/s^2\\\\) Initial velocity of car 2, \\\\(u_2=16\\ m/s\\\\), Acceleration, \\\\(a=4\\ m/s^2\\\\)For car 1,Final Velocity, \\\\(v_1 = 0\\ m/s\\\\)\\\\(-15^2 = -2(3) \ imes s\\\\)\\\\(\ herefore s_1= 37.5\\\\) mFor car 2,Final Velocity, \\\\(v_2 = 0\\ m/s\\\\)\\\\(-16^2 = -2(4) \ imes s\\\\)\\\\(\ herefore s_2= 32\\\\) mTotal displacement,\\\\(s_1+s_2 = 37.5+32 = 69.5\\\\) m\\\\(\ herefore\\\\) separation between them,\\\\(= 150-69.5 =80.5\\\\) m