1. The problem statement, all variables and given/known data An airplane of mass 1.2 x 10^4 kg tows a glider of mass 0.6 x 10^4 kg. The airplane propellers provide a net forward thrust of 5.4 x 10^4 N. What is the glider’s acceleration? 2. Relevant equations I 3. The attempt at a solution Let T = tension on glider from airplane. M= mass of airplane, m = mass of glider. F = force on airplane generated by propellers. I wrote two equations based on the two free body diagrams for the glider and the airplane. Glider : Newtons 2nd Law: T=ma Airplane : Newtons 2nd Law: F - T = Ma The answer is of course F/(M+m) = a Here is my question: The problem uses the term NET FORWARD THRUST. That is confusing to me because I took that to mean that the NET FORWARD THRUST F was the SUM of the forces on the airplane so that a = F/M. Can anyone help me with the language here? Is the term NET FORWARD THRUST just bad terminology???? What am I not understanding????