Find the unit vector in the direction of the vector (6, 8).

Practice Questions

Q1
Find the unit vector in the direction of the vector (6, 8).
  1. (0.6, 0.8)
  2. (0.8, 0.6)
  3. (1, 1)
  4. (0.5, 0.5)

Questions & Step-by-Step Solutions

Find the unit vector in the direction of the vector (6, 8).
  • Step 1: Identify the vector you want to find the unit vector for. In this case, the vector is (6, 8).
  • Step 2: Calculate the magnitude of the vector. Use the formula: Magnitude = √(x^2 + y^2), where x and y are the components of the vector.
  • Step 3: Substitute the values into the formula: Magnitude = √(6^2 + 8^2).
  • Step 4: Calculate 6^2, which is 36, and 8^2, which is 64.
  • Step 5: Add the results: 36 + 64 = 100.
  • Step 6: Take the square root of 100 to find the magnitude: √100 = 10.
  • Step 7: To find the unit vector, divide each component of the original vector by the magnitude. For the x-component: 6 / 10 = 0.6.
  • Step 8: For the y-component: 8 / 10 = 0.8.
  • Step 9: Combine the results to get the unit vector: (0.6, 0.8).
  • Vector Magnitude – Understanding how to calculate the magnitude of a vector using the Pythagorean theorem.
  • Unit Vector – Knowing how to find a unit vector by dividing each component of the vector by its magnitude.
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