Determine v1(t) for t ≥ 0. the value of v1(t) for t ≥ 0 is e–80t v. a) v_1(t) = ve^-80t
b) v_1(t) = ve^-160t
c) v_1(t) = ve^-40t
d) v_1(t) = ve^-20t