From, Newton’s second law of motion we know that force acting on a body is defined as the product of the mass of the body and acceleration acting on the body which is written as F=ma here we have given that, m=2kg and  a=a=6ms ^-2 so on putting the values, the force can be calculated as F=2×6=12Kgms ^-2 . Hence, the force acting on the body is 12Newton.