1. Calculate the acceleration:

* Force (F) = 6 N

* Mass (m) = 2 kg

* Acceleration (a) = F/m = 6 N / 2 kg = 3 m/s² (The acceleration is in the opposite direction of the motion because the force is against it.)

2. Calculate the initial velocity:

* Initial velocity (u) = 30 m/s

3. Calculate the final velocity:

* Acceleration (a) = -3 m/s² (negative because it's against the motion)

* Time (t) = 5 s

* Final velocity (v) = u + at = 30 m/s + (-3 m/s²) * 5 s = 15 m/s

4. Calculate the distance traveled:

* Initial velocity (u) = 30 m/s

* Final velocity (v) = 15 m/s

* Time (t) = 5 s

* Distance (s) = (u + v)/2 * t = (30 m/s + 15 m/s) / 2 * 5 s = 112.5 m

Therefore, the body will move 112.5 meters in 5 seconds after the force is applied.