12-17-08

cory miller The bell rang and everybody ran in to sit down to learn about physics. Mr. Manning reviewed the answers to the problems on the worksheet, Using the Trig Functions: Physics 1. On the worksheet we had to label the opposite side, adjacent side, and hypotenuse for each of the right triangles using the reference angle labeled as theta. There are 3 different equations we use to solve problems like the ones on the sheet. We use sine=opposite/hypotenuse, cosine=adjacent/hypotenuse, and tangent=opposite/adjacent. Opposite is the opposite side to the reference angle. Hypotenuse is the longest side of a triangle. And adjacent is the other side that is not either the opposite side or the hypotenuse. After that we did a daily question which we had to find all angles and sides of the following triangle using the trig functions. It was a right triangle with the opposite side equalling 3.9 meters, the adjacent side equalling 32.6 meters, and the rest we had to find out. When i did the problem i found that the hypotenuse was 32.8 meters, the reference angle equalled 6.8 degrees, and the other angle, that was not the right angle, being 83.2 degrees. After the daily question everybody had to work on another worksheet call: Vector Problems with Trig Functions!: Physics 1. It consisted of 5 multiple step problems. We had to draw the triangle and label it. Then, we had to find what the horizontal and vertical measures of the triangle were. It was a little difficult and if we did not finish it, it would become homework. But I completed it by the end of the class period.