A rotational mechanical system has been modeled by the equation J4+ B2 = T(t). Determine the values of J and B for which the following conditions are met: o Stcady-state rotational velocity for a constant torque, T(t) = 10N m, is 50 rpm (revo- lutions per minute). The speed drops below 5% of its steady-state value within 160 ms after the input torque is removed, T(1) = 0.