Adding Forces Example 1

The video tutorial explains how to add forces together using an example. It begins by introducing the problem of finding the resultant force of three forces acting on a structure. The tutorial then demonstrates how to deconstruct each force vector into horizontal and vertical components, considering the direction of each force. Calculations are shown for each force, and the resultant force vector is determined by summing the components. The final analysis reveals that the resultant force is purely downward, replacing the original forces.

What is the first step in solving the problem of finding the resultant force?

• Add all forces directly without decomposition

• Identify the direction of each force

• Deconstruct each force into horizontal and vertical components

• Calculate the magnitude of each force

How is the horizontal component of force F1 calculated?

• 60 cosine 30

• 60 sine 30

• 40 sine 60

• 40 cosine 60

Which force is entirely horizontal and requires no trigonometry for decomposition?

• None of the forces

• F3

• F2

• F1

What is the resultant force vector's direction after summing all components?

• Purely horizontal

• Purely vertical

• Diagonal

• Zero force

What is the magnitude of the resultant force in the vertical direction?

• 0 Newtons

• 34.64 Newtons

• 17.32 Newtons

• 51.96 Newtons