Solve the below problem:
Q: A follower ABCD is held against a circular cam by a stretched spring which exerts a force of 6 lb for the position shown. Knowing that the tension in rod BE is 4 lb, determine
(a) The force exerted on the roller at A,
(b) The reaction at bearing C.
![2135_Cam.jpg](https://secure.tutorsglobe.com/CMSImages/2135_Cam.jpg)