1. Calculate the acceleration:

* Newton's Second Law: Force (F) = Mass (m) * Acceleration (a)

* Rearranging the formula: Acceleration (a) = Force (F) / Mass (m)

* Plugging in the values: a = 51 N / 17 kg = 3 m/s²

2. Calculate the final velocity:

* Equation of motion: Final velocity (v) = Initial velocity (u) + Acceleration (a) * Time (t)

* Since the object is initially at rest, the initial velocity (u) = 0 m/s

* Plugging in the values: v = 0 m/s + 3 m/s² * 5 s = 15 m/s

Therefore, the object will be moving at 15 meters per second after 5 seconds.