The position of a particle moving along a coordinate line is s = 161 + 4t, with s in meters and t in seconds. Find the particle's velocity and acceleration at t = 5 sec. The velocity at t = 5 sec is m / sec. (Simplify your answer. Type an integer or a fraction.) The acceleration at t = 5 sec is |m / sec2. (Simplify your answer. Type an integer or a fraction.)