Impulse, Momentum, Velocity Example 2 |
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Lecture Description

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The objectives of this video are to use momentum relationships to work out average impulse and to relate kinematic concepts to linear momentum. First of all, the video describes the given exemplary problem where it has asked to find the average impulse based on the given data- a baseball player hits a pitch travelling at a speed of 10 m/s. The ball velocity after the impact is measured to be 15 m/s at 45 degree to the horizontal. The mass of the pitch and gravity acceleration has respectively given as 250 g and 10 m/s2. The schematic diagram of the problem has also given.

Moving on, the video shows how to find out the initial & final momentum and subsequently relates the obtained values to calculate down the average impulse. Next, the video explains how to find out the average force if the ball is in contact with the bat for 0.2 seconds. Overall, the video tries to give a brief inside to the course of action required to work out on complex problems relating to impulse, momentum and velocity. Don’t hesitate to contact, if you don’t understand any part of the tutorial.

Course Description

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.