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Questions and Answers
Which of the following is true about vector addition?
Which of the following is true about vector addition?
- Vectors cannot be added algebraically. (correct)
- Vectors can be added algebraically.
- Vectors have only direction.
- Vectors have only magnitude.
What is the displacement of a car that travels 10 miles North and then 10 miles South?
What is the displacement of a car that travels 10 miles North and then 10 miles South?
- 5 miles
- 20 miles
- 0 miles (correct)
- 10 miles
Which law of vector addition involves forming a triangle?
Which law of vector addition involves forming a triangle?
- Law of Vectors
- Triangle Law (correct)
- Parallelogram Law
- Polygon Law
What is the total distance travelled by the car in the example?
What is the total distance travelled by the car in the example?
What quantities do vectors have?
What quantities do vectors have?
Which of the following best describes vector addition?
Which of the following best describes vector addition?
What is the displacement of the car that travels 10 miles North and then 10 miles South?
What is the displacement of the car that travels 10 miles North and then 10 miles South?
Which law of vector addition involves forming a triangle?
Which law of vector addition involves forming a triangle?
How are vectors added algebraically?
How are vectors added algebraically?
What happens when two vectors have opposite directions?
What happens when two vectors have opposite directions?
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Study Notes
Vector Addition
- Vector addition involves adding two or more vectors together to find the resultant vector.
Displacement and Distance Travelled
- The displacement of a car that travels 10 miles North and then 10 miles South is 0 miles, as it ends up back at the starting point.
- The total distance travelled by the car in this example is 20 miles.
Characteristics of Vectors
- Vectors have both magnitude (amount of movement) and direction.
Methods of Vector Addition
- The triangle method of vector addition involves forming a triangle with the vectors to find the resultant vector.
- Vectors can be added algebraically by adding corresponding components.
Properties of Vector Addition
- When two vectors have opposite directions, they cancel each other out if they have the same magnitude.
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