The image you uploaded includes three different mechanical problems. Here's a breakdown of each one:

1. Problem 1: Calculate the moment at point O due to a force of 100 N applied at a distance from point O (5 m horizontally and 2 m vertically). The image shows a force of 100 N applied at an angle, so the moment will be calculated using the moment formula $M = F \times d$, where $d$ is the perpendicular distance to the line of action of the force.

2. Problem 2: Determine the result of a couple moment (a system of forces creating a rotational effect). The image depicts forces of 200 lb, 300 lb, and 150 lb acting on a triangular arrangement. To solve for the resulting moment, we need to analyze the forces and the geometry of the triangle.

3. Problem 3: Find the resultant force and its location from point O. The diagram shows a distributed load along a beam, with different loads acting at specified locations. To determine the resultant force, we calculate the sum of all forces and the centroid (location of the resultant force).

Would you like me to go over the calculations for any specific problem? Feel free to ask for details on any of them!