Bissoy.com
Doctors Medicines MCQs Q&A

Identify the set with only vector quantities. 

Identify the set with only vector quantities.  Correct Answer Displacement, momentum, Force

 

Concept:

Scalar Quantity Vector Quantity
The physical quantity in which the only magnitude is measured is called a scalar quantity The physical quantity in which both magnitude and direction are considered is said to be a vector quantity.
The scalar quantity follows normal algebraic methods for its algebraic operations like addition and subtraction are done normally like any number. The vector quantity follows vector algebra for its algebraic operations.
Mass, current, voltage, density are some examples of a scalar quantity.  Force, velocity, momentum, displacement are some examples of a vector quantity.
 

Explanation:

  • Displacement: It is the shortest distance between the initial position to the final position and it directed toward the initial to the final position. So, it is a vector quantity. 
  • Velocity: It is a rate of change of displacement and it is a vector quantity. 
  • Force: Force is applied in a particular direction. It is a vector. 
  • Momentum: It is a product of mass and velocity and directed toward the direction of velocity. It is a vector quantity. 
  • Mass: Mass is a scalar as it has no connection with direction. 
  • Current: It is scaler as its rate of flow of charge. Current do not follow vector algebra and it is a scaler quantity. 
  • Time: It is scalar. 

So, the option will all vector quantity is Displacement, momentum, Force.

Related Questions

Consider a system described by ẋ = Ax + Bu y = Cx + Du The system is completely output controllable if and only if Where: x = State vector (n-vector) u = Control vector (r-vector) y = Output vector (m-vector) A = n × n matrix B = n × r matrix C = m × n matrix D = m × r matrix
In the following question, two statements are given each followed by two conclusions I and II. You have to consider the statements to be true even ifthey seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements. Statements:
(I) Empty set is a subset of any set.
(II) A set is a subset of power set. Conclusion:
(I) Empty set is a power set.
(II) A set is a subset of power set.
Consider the following three statements about link state and distance vector routing protocols, for a large network with 500 network nodes and 4000 links. [S1] The computational overhead in link state protocols is higher than in distance vector protocols. [S2] A distance vector protocol (with split horizon) avoids persistent routing loops, but not a link state protocol. [S3] After a topology change, a link state protocol will converge faster than a distance vector protocol. Which one of the following is correct about S1, S2, and S3?
In rolling, there is the involvement of the vector math. So for rolling which of the following is correct? (For A representing the vector representation of the axis of rotation, r the radius vector and F the force vector)
The Burgers vector b is the vector which defines the magnitude and direction of slip. For a pure edge dislocation, the Burgers vector is perpendicular to the dislocation line, while for a pure screw dislocation, the Burgers vector is parallel to the dislocation line.
The following question is based on the given data for an examination. A. Candidates appeared 10500 B. Passed in all the five subjects 5685 C. Passed in three subjects only 1498 D. Passed in two subjects only 1250 E. Passed in one subject only 835 F. Failed in English only 78 G. Failed in Maths only 275 H. Failed in Physics only 149 I. Failed in Chemistry only 147 J. Failed in Biology only 221 How many candidates passed in at least four subjects ?
In each of the questions 20-21 , there are two quantities : Quantity A and Quantity B. You are to compare those quantities . Quantities A 5 (a-7) Quantity B 5a - 7
Given below are three quantities named 1, 2 and 3. Based on the given information, you have to determine the relation among the three quantities. You should use the given data and knowledge of Mathematics to choose between the possible answer. The options represent the relations among three quantities. A. < B. > C. ≤ D. ≥ E. = Quantity 1: There is a square field of side 4 meter. A flower bed is to be prepared in its centre, leaving a gravelled path of uniform length around the flowerbed. The cost of preparing the flowerbed and gravelling the path is Rs. 100 and Rs. 200 per square meter respectively. If the total cost is Rs. 1756 then find the double of  width of gravelled path. Quantity 2: The height of a cone is 45 cm. A small cone is cut from it parallel to the base. If the ratio of volume of small cone and the remaining part is 8 : 19 then what is the height from the base from where the cone was cut? Quantity 3: A cylindrical container of radius 60 cm and height 150 cm is filled with ice cream. 10 cones of equal volume need to be prepared from the whole ice-cream. These cones has hemispherical top and the height of the conical portion is 4 times the radius of hemisphere. Find radius of the hemisphere. 
Given below are three quantities named 1, 2 and 3. Based on the information, you have to determine the relation among the three quantities. You should use the given data and knowledge of Mathematics to choose between the possible answer. The options represent the relations among three quantities. A. <  B. = C. > D. ≤ E. ≥ Quantity 1: The average age of 36 students is 14 years. When the teacher’s age is included the average increases by 1 year. What is the age of the teacher? Quantity 2: The average salary of the entire staff in an office is Rs. 120 per month. The average salary of officers is Rs.460 and that of non- officers are Rs.110. if the number of officers is 15, then find the number of non-officers in the office. Quantity 3: 25
Given below are three quantities named 1, 2 and 3. Based on the given information, you have to determine the relation among the three quantities. You should use the given data and knowledge of Mathematics to choose between the possible answer. The options represent the relations among three quantities. A. < B. > C. ≤ D. ≥ E. = Quantity 1: A shopkeeper earns 20% profit by selling an item at Rs. P. If he increases the selling price by Rs. 90, he can make a profit of 35%. Find the value of P. Quantity 2: A shopkeeper earns x% profit even after allowing a discount of Rs. 126. Find the cost price of the article if the (x + 15)% profit is earned if no discount is offered. Quantity 3: When an article is sold for Rs. 984, the profit percentage is 4 times as much as when it is sold for Rs. 861. Find the cost price of the article.