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Tuesday, July 24, 2007


Solving For Resultant Vectors...
Using The Graphical Method
1. First choose an appropriate scale and frame of reference for the given vectors.
2. Draw the first vector starting from the point of origin of the reference frame. Draw the second vector starting from the head of the first vector. Proceed to draw the remaining vectors starting from the head of the most recent vector drawn. All vectors must be connected in series, head to tail fashion.
3. Draw the new vector connecting the tail of the first to head of the last vector drawn, This new vector is now the resultant vector of the given vectors. Measure it using the ruler and measure its angle using the protractor.

Using The Component Method
1. Draw each vector and show its components.
2. Determine the magnitude and direction of the components by using the trigonometric functions(sin,cos and tan).
3. Find the sum of the x components.
4. Find the sum of the y components.
5. The answers obtained in steps 3 and 4 are the x and y components of the resultant vector. Use these components to find the magnitude and direction of the resultant vector, using the pythagorean theorem and other trigonometric functions.
6. Check your answer by comparing it with the result obtained in your graphical method.


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