Answer:
5) 0 N
Step-by-step explanation:
According to Newton's second law of motion: "The acceleration of an object produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force and inversely proportional to the object's mass" .
Because the vehicle travels at a constant speed, its acceleration at zero, so
[tex]A=F_{net}/m[/tex],
[tex]F_{net}=A*m; A=0\\F_{net}=0[/tex]
