A vector’s resolution is the breaking of a single vector into two or more vectors in different directions that, when combined, have the same effect as a single vector. A vector that is directed at an angle to the horizontal (or vertical) can be divided into two parts (or components).
In other words, any two-dimensional vector can be conceived of as having two components. When a chain pulls upward at an angle on a dog’s collar, for example, a tension force is generated in two dimensions. There are two components to this tension force: an upward component and a rightward component.
Consider an airplane flying northwest from Chicago’s O’Hare International Airport to a destination in Canada. The plane’s displacement vector is two-dimensional (north). Vector resolution is the way of assessing the magnitude of a vector. We’ll look at two different vector resolution approaches.
- The method of the parallelogram
- The trigonometric method
A Brief outline
The parallelogram technique of vector resolution includes determining the components of a vector using a correctly drawn, scaled vector diagram. In a nutshell, the procedure entails drawing the vector to scale in the stated direction, sketching a parallelogram around the vector so that the vector is the parallelogram’s diagonal, and using the scale to determine the magnitude of the components (the parallelogram’s sides). The parallelogram is a rectangle having vertical and horizontal sides that can be used to calculate the components as directed along the standard x- and y-coordinate axes.
The trigonometric approach of vector resolution includes determining the vector’s components using trigonometric functions. It was discussed how to find the direction of a vector using trigonometric functions. The components of a single vector will be determined using trigonometric functions. The ratio of the lengths of the sides of a right triangle to the value of an acute angle within the right triangle is calculated using trigonometric functions. As a result, if an angle indicator and the length of one side are known, trigonometric functions can be used to compute the length of the sides of a right triangle.
The following is a step-by-step guide upon using the parallelogram approach of vector resolution:
- Chosen a scale and constructed the vector to scale in the direction provided.
- Created a parallelogram around the vector by sketching vertical and horizontal lines at the vector’s tail, then horizontal and vertical lines at the vector’s head; the drawn lines will meet to make a rectangle (a special case of a parallelogram).
- Drew the vector’s components. The parallelogram’s sides are the components. The components’ tails begin at the tail of the vector and extend along the axes to the parallelogram’s nearest corner. Take care to use arrowheads to indicate the direction of these elements (up, down, left, right).
- Labelled the components of the vectors with symbols to indicate which side each component represents. North is a name for a northward force component. vx could be the name of a rightward velocity component, and so on.
- Used the scale to assess the magnitude of the elements in real units by measuring the length of the parallelogram’s sides. On the diagram, write the magnitude.
The following is the procedure for determining the components of a vector using trigonometric functions:
- Generated a rough outline of the vector in the provided direction (no scale required). Make a note of its size and the angle it creates with the horizontal.
- Drew a rectangle around the vector, with the vector as the rectangle’s diagonal. Draw vertical and horizontal lines starting at the tail of the vector. Then, at the top of the vector, draw horizontal and vertical lines. The drawn lines will come together to form a rectangle.
- Drew the vector’s components. The rectangle’s sides are the components. Each component’s tail starts at the tail of the vector and extends along the axes to the rectangle’s nearest corner. Take care to use arrowheads to indicate the direction of these elements (up, down, left, right).
- Identified the components of the vectors using symbols to designate which side each component represents. North is a name for a northward force component. The velocity component of a rightward force can be denoted vx, and so on.
- Using the sine function, the length of the side opposite the stated angle was found. Substituted the length of the hypotenuse for the magnitude of the vector. Write the equation for the length of the side opposite the indicated angle employing algebra.
- Found the height of the side adjacent to the stated angle, repeated the previous step using the cosine function.
Significance of resolution of a vector in NEET:
The important questions in vector resolution will help you prepare for the next NEET exams. The NEET resolution vector Vital Problems were created by competent teachers to help students in need and to ensure that students can answer all scalar and vector questions from class 11 physics. The following important questions will benefit students studying for the NEET exam as well as those training for the JEE admission exam. Vector questions are a useful mathematical tool when dealing with numerical-type physics problems.
Students can download chapter-by-chapter basic questions in a Pdf file from the limitless learn website and use them for additional study. Students should also thoroughly review the CBSE board’s Physics Scalars & Vectors syllabus and download vector-related problems for each course. This will greatly aid everyone in identifying any flaws in their understanding of the principles. In order to improve their test results, students in class 11 should practice Vectors resolution major questions on a daily basis.
In summation, a two-dimensional vector has two components, i.e., an impact in two different directions. Techniques of vector resolution can be used to determine the quantity of effect in a given direction. A modelling approach (parallelogram method) and a trigonometric method for vector resolution are described here. In the same plane, a vector can be defined in terms of other vectors. A can be represented as the summation of a and b after multiplying them with some real numbers if there are three vectors A, a, and b. A could be established into two constituent vectors λa and μb. Later, A = λa + μb. Now λ and μ are real figures.
Frequently asked questions (FAQs)
Question 1: What is the formula for calculating the horizontal and vertical components of a vector?
Answer: We know that the horizontal component is the velocity or force that really is parallel to the horizontal axis, and the vertical component is the amount that is parallel to the vertical axis. The horizontal and vertical parts can be calculated using the right-angled triangle as a model. The force or velocity is represented by the hypotenuse, and the angle is used to quantify the vertical and horizontal components of vectors.
Question 2: Give an example of a vector definition.
Answer: A vector is a physical quantity with a magnitude as well as direction. The movement of moving items from one point to another is described by a vector quantity.
Question 3: Is it Possible to Resolve a Vector?
Answer: Yes, it is correct. Take the two numbers, say 5 and 8, and add them together and get the 13. In addition, the number 13 is split or resolved.