Dec.+8+2008

Today in physics today our class learned more about vector addition. First we had to choose a scale; we do this by looking at all the numbers in the problem. After you have created the scale you calculate the length for each vector drawing by cross multiplying the scale and forces. The next step is drawing each vector. You must start the second vector at the head of the first one, and the third at the head of the second. Once all the forces are drawn on the paper you draw the sum of the vectors to determine the magnitude and direction of the three forces.