Knowee
Questions
Features
Study Tools

Find the magnitude and direction angle (in degrees) of the following vector.v=12(cos(68°)i+sin(68°)j)

Question

Find the magnitude and direction angle (in degrees) of the following vector.

Vector:
v = 12(cos(68°)i + sin(68°)j)

  • Magnitude:
  • Direction Angle:
🧐 Not the exact question you are looking for?Go ask a question

Solution

The magnitude of a vector v = ai + bj is given by √(a² + b²). In this case, a = 12cos(68°) and b = 12sin(68°).

Step 1: Calculate a² and b² a² = (12cos(68°))² b² = (12sin(68°))²

Step 2: Add a² and b² a² + b² = (12cos(68°))² + (12sin(68°))²

Step 3: Take the square root of the sum to find the magnitude |v| = √((12cos(68°))² + (12sin(68°))²)

However, we know that (cos(θ))² + (sin(θ))² = 1 for any angle θ. So, the magnitude of the vector is √(12²) = 12.

The direction angle of the vector is the same as the angle given in the vector, which is 68°.

So, the magnitude of the vector v is 12 and its direction angle is 68°.

This problem has been solved

Similar Questions

Find the magnitude and direction angle (in degrees) of the following vector.v=7(cos(82°)i+sin(82°)j)

Find the magnitude and direction angle of the following vector. Write your angle in degrees rounded to four decimal places.u=−12i−7j

What is the angle between the two vectors A = 3i + 4j and B = 9i + 12j?oGroup of answer choices180o90o0o-90o

Two vectors having equal magnitude of 10 unit, have an angle of 60° between them. Find the magnitude of their resultant vector.

26. Find the angle between the vectors A⃗ = 6î+8ĵ+ 10k̂ and B⃗⃗ = 6î+ 8ĵ- 10k̂.A. θ = 10°B. θ = 25°C. θ = 35°D. θ = 55°E. θ = 90°

1/3

Upgrade your grade with Knowee

Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.