Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
Concepts Of Physics MCQ Edition [Volume 1]PhysicsPhysics and Mathematics

Two vectors are defined as a = 4 i + 3 j and b = 3 i + 4 j . Determine the magnitude of a - b .

Options

  1. A2
  2. B0
  3. C2
  4. D1

Correct answer

A. 2

Step-by-step solution

Given vectors are a = 4 i + 3 j and b = 3 i + 4 j . The difference between the two vectors is given by: a - b = (4 i + 3 j ) - (3 i + 4 j ) a - b = (4 - 3) i + (3 - 4) j = i - j The magnitude of the resultant vector is: | a - b | = (1)^2 + (-1)^2 | a - b | = 1 + 1 = 2

Practice Physics and Mathematics on Quantrex Academy →

More from Physics and Mathematics

Consider two vectors A and B , each having a magnitude of 10 unit. If these vectors are inclined to the X-axis at angles of 30^ and 60^ respectively, determine their resultant.Vector A has a magnitude of 3 m and is directed at an angle of 20^ to the X-axis, while vector B has a magnitude of 4 m and is directed at 110^ to the X-axis. Determine their resulGiven the vectors a = 4 i + 3 j and b = 3 i + 4 j , evaluate the magnitude of a .Consider the vectors a = 4 i + 3 j and b = 3 i + 4 j . Calculate the magnitude of b .Suppose two vectors are given by a = 4 i + 3 j and b = 3 i + 4 j . Compute the magnitude of a + b .Determine the sum of vectors A , B , and C , each possessing a magnitude of 100 units and inclined to the X-axis at angles of 45^ , 135^ , and 315^ respectively.Based on the figure, determine the x and y components of the resultant of OA , BC and DE .Based on the figure, determine the magnitude of the resultant of OA , BC and DE . Full Physics and Mathematics list All Concepts Of Physics MCQ Edition [Volume 1] PYQs