1. The problem statement, all variables and given/known data A transport plane takes off from a level landing field with two gliders in tow, one behind the other. The mass of each glider is 700kg, and the total resistance (air drag plus friction with the runway) on each may be assumed constant and equal to 2700 N . The tension in the towrope between the transport plane and the first glider is not to exceed 12000N. If a speed of 40m/s is required for takeoff, what minimum length of runway is needed? What is the tension in the towrope between the two gliders while they are accelerating for the takeoff? 2. Relevant equations F=ma 3. The attempt at a solution First I drew the problem out. On how I see it. Now I will draw the forces on each object separately. Transport Plane: Normal and Weight equally the same. Tension pulling from the left. Force of 40m/s going to the right. (This is the boost it needs for the objects to move.) Glider behind Transport Plane: Normal and Weight equally the same. Tension pulling from right larger. Tension pulling from left smaller. Glider behind Glider: Normal and Weight equally the same. Tension pulling from right larger.