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The objectives of this video are to discuss about projectile motion & to complete a projectile motion problem. Basically, a projectile motion is a form of motion in which an object moves along a curved path under the action of gravity only. First part of the video discusses about the correct analysis of a projectile motion that is useful enough to find the time of flight, initial and final velocity, max height, displacement and launch angle. The key of the complete analysis is the resolution of forces into x & y components- constant velocity & no acceleration in x axis & constant gravity acceleration in y axis.
Moving on, the video presents a comprehensive exemplary problem of projectile motion where the time of flight and the range of the throw have been asked to determine based on the data given. The initial velocity, gravity acceleration, launch angle and necessary dimension are given. Using the data available, the video draws the projectile and resolves the velocity into y components to determine the flight time. The video considers the time taken by the stone to reach ground by imagining that the stone has been thrown directly upward in direction.
Mechanics, the study of forces and physical bodies, underpins a very large proportion of all forms of engineering. A thorough understanding of mechanics is essential to any successful engineer. This course helps develop an understanding of the nature of forces with consideration for how they may be simplified in an engineering context. The conditions of equilibrium are then used to solve a number of problems in 2D and 3D before moving on to a broad range of topics including centroids, distributed loads, friction and virtual work. The course will also provide an introduction to dynamics, with a particular focus on the effects that forces have upon motion.