Question 197: Motion in 2D & Vectors

Question

A particle starting from the origin (0, 0) moves in a straight line in the (x, y) planes. Its coordinates at a later time are $$\left( {\sqrt 3 ,3} \right)$$. The path of the particle makes with the x-axes an angle of

Accepted Answer

Let $$	heta $$ be the angle
which the particle makes
with an x-axis.
From figure,
$$	an 	heta  = {3 \over {\sqrt 3 }} = \sqrt 3 $$
$$ \Rightarrow 	heta  = {	an ^{ - 1}}\left( {\sqrt 3 } ight) = 60^\circ $$

Answer

45
o

Answer

60
o

Answer

0
o

Answer

30
o
.

Motion in 2D & Vectors

A particle starting from the origin (0, 0) moves in a straight line in the (x, y) planes. Its coordinates at a later time are $\left( {\sqrt 3 ,3} \right)$. The path of the particle makes with the x-axes an angle of

Choose the correct answer: