Question

solve this question with explanations
I will mark as brainlist answer ​

Answer 1

magnitude of displacement= square root(7^2+4^2+3^2) jo khud solve kro.

and

displacement vector components are

7i

4j

3k.

Answer 2

The mosquito enters through the hole at one corner and then sits at the diagonally opposite pole .

This means that the vector of displacement can be written as :

7 i + 4 j + 3 k where i denotes the unit vector of x-axis , j for y-axis and k for z-axis .

Now we know that magnitude of vector is :

$\sqrt{A_x^2+A_y^2+A_z^2}$

(a) Hence the magnitude of the given vector would be :

$\sqrt{7^2+4^2+3^2}\\\\\implies \sqrt{49+16+9}\\\\\implies \sqrt{74}ft$

(b) Now change the coordinate system and take the hole as the center .

Mark the coordinates of each corners and you can calculate each component .

The components of displacement will be :

7 ft , 4 ft and 3 ft .