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θ 1000 m V 0 = 100 m/s MAPUA INSTITUTE OF TECHNOLOGY DEPARTMENT OF PHYSICS PHY10L/A5 INTERPRETATION OF RESULTS This experiment deals with the special case of two-dimensional motion, the projectile motion. It is one of the traditional branches of classical mechanics, with application to ballistics. One force affecting this motion greatly is the external force, the gravity. To analyze the motion of a projectile and to compare the ranges of projectile launched at different angles are the objectives of this experiment. Using a launcher and the ball, we determine attributes of the projectile. To mark the points where the ball lands, we use a carbon paper. A projectile is any object which is thrown or otherwise projected into the air. The projectile used is the ball. In this experiment, it is assumed that the effects due to air resistance are negligible due to projectiles traveling are at low velocity which is less relative to air. The path that a projectile follows is called its trajectory. A projectile that is projected (or fired) from some height follows a parabolic trajectory toward the ground. It takes the same time to reach the ground as if it were dropped from rest. In projectile motion, horizontal motion is greatly independent with vertical motion. It is because they occur perpendicularly. The horizontal motion has constant velocity with zero acceleration. On the other hand, vertical motion is affected by gravity yielding it with constant deceleration of 9.8m/s 2 . The projectile is launched horizontally at a measured height of the cannon. Using the height, we can determine the time of travel by the projectile through the formula √(2y/g). The height is measured to be 0.262 m. Horizontally, a projectile travels at a constant velocity. It is because no external force is affecting this motion.
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This note was uploaded on 04/27/2011 for the course PHY 10L taught by Professor Agguire during the Spring '11 term at Mapúa Institute of Technology.

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