Answer:
650 N
Explanation:
We can solve the problem by applying Newton's second law on the trailer:
[tex]F=ma[/tex]
where
F is the force exerted on the trailer
m is the mass of the trailer
a is its acceleration
Here we have:
m = 500 kg is the mass of the trailer
[tex]a=1.3 m/s^2[/tex] is the acceleration (the acceleration of the trailer is identical to that of the car, since they travel together)
Therefore, the force on the trailer is
[tex]F=(500)(1.3)=650 N[/tex]