1. A carpenter holds a 12-lb 2-in. by 4-in. board as shown. If he exerts vertical forces on the board, determine the forces at A and B.
![74_Compute the reactions at the support point.png](https://secure.tutorsglobe.com/CMSImages/74_Compute%20the%20reactions%20at%20the%20support%20point.png)
2. The 500-kg uniform beam is subjected to the three external loads shown. Compute the reactions at the support point O. The x-y plane is vertical.
![271_Compute the reactions at the support point1.png](https://secure.tutorsglobe.com/CMSImages/271_Compute%20the%20reactions%20at%20the%20support%20point1.png)