You're asking for the net force required to accelerate a 250 kg trailer at 4 meters per second squared (m/s²). Here's how to calculate it:

Newton's Second Law of Motion

Newton's Second Law states: Force (F) equals mass (m) multiplied by acceleration (a).

* F = m * a

Applying the Information

* m = 250 kg (mass of the trailer)

* a = 4 m/s² (acceleration of the trailer)

Calculation

* F = 250 kg * 4 m/s²

* F = 1000 Newtons (N)

Answer

The net force required to accelerate the trailer is 1000 Newtons.