Question

y component of velocity is 20 and x component of velocity is 10. the direction of motion of the body with the horizontal at this instant is-

Answer 1

the direction is tan^-1(2) in positive x direction

Answer 2

Image

In the above graph, it represents the y component = 20

And the x component = 10

From the question, we can form a triangle.

$\tan { \theta  } \quad =\quad \frac { Opposite\quad side }{ Adjacent\quad side }$

$\tan { \theta  } \quad =\quad \frac { 20 }{ 10 }$

$\tan { \theta  } \quad =\quad 2$

$\theta \quad =\quad \tan ^{ -1 }{ 2 }$