Question by Student 201883576 Professor, I have a doubt regarding the problem 5(c) and 5(d) of assignment 4. I could solve a similar problem[l] where the stagnation pressure and temperature behind the reflected shock is calculated given the speed of the incident shock($v_s$). However, in problem 5, having calculated the required stagnation pressure and temperature to drive the gun tunnel, I am unable to calculate the incident shock speed. It seems I require either the speed of the air behind the incident shock or the speed of the reflected shock to solve the problem. Can this problem be solved without knowing these speeds in prior?
 $\pi$