Answer: D)600N
Step-by-step explanation:
The question is incomplete, since it is not given the acceleration. However, let's assume the truck's acceleration is [tex]0.5 m/s^{2}[/tex].
Now, according to Newton's second law of motion, the force [tex]F[/tex] exerted on an object is directly proportional to its mass [tex]m[/tex] and acceleration [tex]a[/tex] :
[tex]F=m.a[/tex]
Where:
[tex]m=1200 kg[/tex]
[tex]a=0.5 m/s^{2}[/tex]
Solving the equation:
[tex]F=(1200 kg)(0.5 m/s^{2})[/tex]
Finally:
[tex]F=600 N[/tex]