Analyze the flight of a projectile moving under the influence of gravity (mg) and linear, i.e., laminar-flow drag (fD = -bv), with b constant). Neglect (phase I); assume the projectile is launched from mthe origin at speed v1 and angle theta1 above the horizontal. WARNING: Neither the results for the drag-free projectile nor those for the projectile with turbulent-flow drag can be applied directly to this problem; you must go back to basic principles.

Question

Analyze the flight of a projectile moving under the influence of gravity (mg) and linear, i.e., laminar-flow drag (fD = -bv), with b constant). Neglect (phase I); assume the projectile is launched from mthe origin at speed v1 and angle theta1 above the horizontal. WARNING: Neither the results for the drag-free projectile nor those for the projectile with turbulent-flow drag can be applied directly to this problem; you must go back to basic principles. 
a. Determine the velocity components vx and vy and the coordinates x and y, of the projectile as functions of time. 
b. Ccalculate the horizontal position of the peak of the projectile’s trayectory (xpeak) and the height for the peak (ypeak). Remember the WARNING!