Question

If A= 2i+3j-k and B=-I +3j +4k then projection of A on B will have magnitude of

Answer 1

Answer:

Explanation:

Projection of vectorA on vectorB=(vectorA.vectorB)1/|vectorB|

Then after solving answer will be 3/√26

Answer 2

Answer:

3/$\sqrt{26}$

Explanation:

Given A = 2i + 3j - k

           B = -i + 3j + 4k

 Projection of A on B is (A.B)/|B|

now (A.B) = 2(-1) + 3(3) + (-1)4  = 3

          |B| = $\sqrt{1 + 9 + 16}$  = $\sqrt{26}$

      ∴Projetion of A and B = (A.B)/|B|

                                           = 3/$\sqrt{26}$

The project code is  #SPJ2