An electric aircraft is towing a glider along a straight horizontal flight path at a constant speed.
A constant tension of TTT newtons exists in the horizontal tow-line connecting the aircraft to the glider.
The aircraft's propulsion system provides a constant forward thrust of 3200 N3200 \text{ N}3200 N.
The constant air resistance (drag) acting on the glider is 1150 N1150 \text{ N}1150 N.
Determine the value of TTT, providing a justification based on the physical state of the system.
Identify one assumption made regarding the tow-line in your answer to part (a).
Calculate the magnitude of the drag force acting on the aircraft.
87 exam-style questions on OCR (MEI) A Level Maths 3.4 Forces, covering 3.4.1 Language relating to forces, 3.4.2 Acceleration due to gravity, 3.4.3 Identify forces and draw force diagrams, 3.4.4 Resultant of concurrent forces, 3.4.5 Equilibrium of a particle, 3.4.6 Resolve a force into components (A-level only), 3.4.7 Equilibrium condition for resultant zero (A-level only), 3.4.8 Forces in equilibrium sum to zero (A-level only), 3.4.9 Equations for a particle in equilibrium (A-level only), 3.4.10 Frictional force and normal contact force (A-level only), 3.4.11 Model friction with F ≤ μR (A-level only), and 3.4.12 Apply Newton's Laws to friction problems (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.