Step-by-step explanation:
As we know that relation between force, mass and acceleration is as follows.
 F = ma
where, F = force
 m = mass
 a = acceleration
So, it is given that force is 3000 N and mass is 200 kg. Hence, calculate the acceleration as follows.
 F = ma
 3000 N = 

 a = 

 = 

Thus, we can conclude that acceleration of the given object is 
 .
.