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Exercise taken from Paul L DeVries - A first course in computational physics ( 1 9 8 4 ) . Please create a . f

Exercise taken from Paul L DeVries - A first course in computational physics (1984). Please create a .f95 program that solve this problem.
EXERCISE 5.5
One of the standard problems of first-year physics is one-dimensional projectile motion - but contrary to standard practice, let's include air resistance to see how large an effect it is. The time rate of change of the momentum is
dpdt=mg-kv2
where m is the mass of the object, g=9.8ms2 is the acceleration due to gravity, and k is a drag coefficient. For a particular sphere of mass 10-2kg the drag coefficient was determined to be k=10-4kgm. Letting p=mv, use the fourth-order Runge-Kutta method to find the velocity of the sphere released from rest as a function of time for 0 seconds. Choose a step size to ensure 4-significant-digit accuracy. Compare your calculation to the zero-th order approximation, e.g., the analytic solution obtained by ignoring air resistance.
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