(Solved): 12-35. A freight train starts from rest and travels with a constant acceleration of \( 0.5 \mathrm{ ...
12-35. A freight train starts from rest and travels with a constant acceleration of \( 0.5 \mathrm{ft} / \mathrm{s}^{2} \). After a time \( t^{\prime} \) it maintains a constant speed so that when \( t=160 \mathrm{~s} \) it has traveled \( 2000 \mathrm{ft} \). Determine the time \( t^{\prime} \) and draw the \( v-t \) graph for the motion.