Question

If A, B and ĉ represent unit vectors in each case, whích vector combination(s) results in a unit vector
(2)
(1)
с
с
B
B
CU)
(3)
А
A
Ć
B
(B1,3
(A) 1, 2, 3
(C) 1, 2,4
(D) 4​

Answer 1

Answer:

OPTION B) 1,3

Explanation:

GIVEN:

   A, B and ĉ represent unit vectors.

TO FIND:

  whích vector combination(s) results in a unit vector.

SOLUTION:

    OPTION B) 1,3

#SPJ2

Answer 2

Answer:

The final answer is

OPTION B : 1,3

Explanation:

Given : A, B, and ĉ represent unit vectors.

To Find : The combination of vectors is a unit vector.

Explanation :

A unit vector is a normal vector. We use lowercase letters with a ‘hat’. The 'hat' is used to mention the type of vector and the direction of a vector.

Vectors are labeled with arrows and unit vectors are labeled with "^". Vector will be a unit vector by dividing the vector’s magnitude.

$\begin{aligned}\hat{R} &=\hat{A}+\hat{B}+\hat{C} \\|\vec{R}| &=\sqrt{|\hat{A}|^{2}+|\hat{B}|^{2}+|\hat{C}|^{2}} \\&=\sqrt{3}\end{aligned}$

$|\vec{R}|=|\hat{B}|=1$

So, figure 1 and 3 is a unit combination.

#SPJ3