lab 4.docx - Introduction and Objectives Physical...

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Introduction and Objectives:Physical quantities normally classified as either scalar or vector quantities. It’s very easy to separate them from each other. A scalar quantity is the physical quantities with magnitude only including units. For example, speed (20 m/s), time (5s), temperature (10oC), etc. On the other hand, a vector quantity is the physical quantities with both magnitude and direction. For example, displacement, velocity, acceleration, force, etc. The common method of addition of scalar quantities is not applicable to add vector quantities because vectors have the property of direction and we have to take account of the direction as well as the magnitude. Resultant or the vector sum can be found in different ways, such as graphical, analytical or experimental. In this experiment, we will follow these three methods to find sum of different vectors and will also investigate the addition of force vectors. The objectives of this experiment are,To add set of vectors graphically to find the resultant.To add a set of vectors analytically to find the resultantTo appreciate the difference in convenience between using graphical and using analytical methods of vector addition.

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