y 20 C 5 A e B Figure 2: Right angle triangle Question 4 Referring to figure 2, if C = 5 and 0 = 30 degrees, what is the value of A? What is the value of B? Question 5 Dividing forces into their vector components is a matter of geometry. In figure 3, we have a 5N force acting at 30 in the positive r and y direction. A second force of 7N is acting in the negative y direction at an unknown angle 0. In order to balance the y components of the two, the net y force component must be zero. What would 0 need to be in order to balance the forces in the y-direction? 5 N 7 N Figure 3: Two force vectors