Final Answer:
Resultant force on the plate is 50 N, directed from A to C, obtained by adding the parallel forces. This considers vector addition principles for parallel forces acting in the same direction.
Step-by-step explanation:
The two parallel forces, each of 50 N magnitude, act on corners A and C of the 200-mm square plate. To find the resultant force, we need to consider the vector addition of these forces. Since the forces are parallel and acting in the same direction, the resultant force is simply the sum of the individual forces, leading to a 100 N force directed from A to C.
This can be explained using the principles of vector addition, where forces along the same line add up algebraically. The square plate experiences a net force of 100 N along the line connecting points A and C. It's crucial to recognize the significance of force direction, which determines the resultant force's magnitude and direction.
In summary, the final answer states that the resultant force on the square plate is 50 N, directed from A to C. The explanation clarifies that this result is obtained through vector addition principles, considering the parallel forces acting on the plate. This understanding is essential in solving problems involving force systems and their effects on structures.