Parabolic Motion

9 Mar 2012


Projectile motion occurs when objects are fired at some initial velocity or dropped and move under the influence of gravity.
One of the most important things to remember about projectile motion is that the effect of gravity is independent on the horizontal motion of the object. The independence of the horizontal and vertical components of the motion of the object is often used in these type of physics problems.
It also accounts for the counter intuitive observation that a bullet fired horizontally from a gun takes the same time to fall to the ground as a bullet that is dropped from the same height.

Parabolic motion on x-axis is uniform rectilinear motion while motion on y-axis is accelerated uniform rectilinear motion. Therefore, from the figure above we can obtain the following equation.

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