![]() The horizontal force acting on the object tends to move the object horizontally and the gravitational force acting on the object tends to move the object downwards. Figure 2 explains a scenario where projectile motion happens. The projectile motion of a particle can be studied by splitting the motion into horizontal and vertical components, and considering the forces that move the object separately. The curve traced out by the object subject to a constant force in one direction is a parabola. The two-dimensional motion illustrated in Figure 1 is called projectile motion. ![]() In this article, the concept of two-dimensional motion and the equations that govern the two-dimensional motion are explained. The motion of the ball is two-dimensional, as illustrated in Figure 1. Now, consider a ball kicked by a football player. The motion of the car is one-dimensional. Consider a car that is moving in a straight line.
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