MODELLING THE PROJECTILE MOTION UNDER A TIME – DEPENDENT EXTERNAL FORCE
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Abstract
This research aimed to study the motion of oscillating particles as a function of horizontal and vertical time. The study was began by analyzing the equations of motion of particles according to Newton's second law. Then, the horizontal and vertical displacement and velocity of the projectile moving particles as a function of time was calculated under air resistance and lifting force and compared it with adding an external force into the vertical. Then, the results were applied to create a graph with a computer program. The results show that the velocity and vertical displacement graphs are functions of the time when the external force is more applied. A graph with no external forces acting at the same time is not a theoretically symmetrical parabolic graph.
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