Sebuah mbl diberi percptn 2m/s selama 10dtk dari keadaan diam,kemudian diberi prlambtan sebesar 4 m/s hngga brhnti. Jarak total..

[tex]\displaystyle v_0=0\,\text{m/s}\\v_2=0\,\text{m/s}\\a_1=2\,\text{m/s}^2\\t_1=10\,\text{s}\\a_2=-4\,\text{m/s}^2\\\\s=?\\\\v_1=v_0+a_1t_1\\v_1=0+2\cdot10\\v_1=20\,\text{m/s}\\\\v_1^2=v_0^2+2a_1x_1\\20^2=0^2+2\cdot2x_1\\400=4x_1\\100\,\text{m}=x_1\\\\v_2^2=x_1^2+2a_2x_2\\0^2=20^2+2\cdot(-2)x_2\\0=400-4x_2\\x_2=100\,\text{m}\\\\s=x_1+x_2\\s=100+100\\\boxed{\boxed{s=200\,\text{m}}}[/tex]