resolving forces

• What should you be able to do by the end of the video on vector diagrams?

  Use a vector diagram to resolve a single force into two forces
• What is the purpose of using vector diagrams in this context?

  To resolve a single force into two components
• What did the last video cover regarding vector diagrams?

  How to work out the resultant of two forces acting at an angle
• What does a horizontal force indicate in terms of direction?

  All of the force is acting in the horizontal direction
• What does a vertical force indicate in terms of direction?

  All of the force is acting in the vertical direction
• What does a diagonal force imply about its components?

  Part of the force acts horizontally and part acts vertically
• What are the axes used to represent the components of a force?

  X and Y axes
• What must the two components of a resolved force be at?

  At right angles to each other
• How can you determine the magnitude of the horizontal and vertical components of a force?

  By drawing a vector diagram to scale
• What is the example force given in the video?

  A 100 Newton force acting at an angle of 35 degrees
• What scale is used in the example to draw the vector diagram?

  1 centimeter equals 10 Newtons
• How long will the vector be for a 100 Newton force using the given scale?

  10 centimeters
• What are the lengths of the horizontal and vertical components determined in the example?

  Horizontal component: 8.3 cm, Vertical component: 5.7 cm
• What are the magnitudes of the horizontal and vertical components in Newtons?

  Horizontal: 83 Newtons, Vertical: 57 Newtons
• What should you do with faint lines in your exam answer?

  Blob out any faint lines to show only the vectors
• What is the question posed for the viewer to try?

  A 75 Newton force acting at an angle of 20 degrees
• What should you do after drawing the vector diagram for the 75 Newton force?

  Draw dotted lines from the head of the vector to the axes
• What are the lengths of the horizontal and vertical components for the 75 Newton force?

  Horizontal: 7 cm (70 Newtons), Vertical: 2.5 cm (25 Newtons)
• What is the process for resolving a single force into two components using a vector diagram?

  1. Draw the force vector at the given angle.
  2. Draw horizontal and vertical axes.
  3. Draw dotted lines from the vector's head to the axes.
  4. Identify the horizontal and vertical components.
  5. Measure the lengths of the components to find their magnitudes.
• What are the key steps to follow when drawing a vector diagram for resolving forces?

  • Use a scale to represent the force.
  • Measure the angle accurately.
  • Draw the vector to scale.
  • Use dotted lines to find components.
  • Measure the lengths of components for their magnitudes.