Two vectors of magnitude $3$ & $4$ have resultant which make angle $\alpha$ & $\beta$ respectively with them $\{given\, \alpha + \beta \neq 90^o\}$
$\frac{\sin \alpha}{\sin \beta} = \frac{3}{4}$
$\frac{\sin \alpha}{\cos \beta} = \frac{3}{4}$
$\frac{\sin \alpha}{\sin \beta} = \frac{4}{3}$
None of above
A person pushes a box kept on a horizontal surface with force of $100\,N$ . In unit vector notation force $\vec F$ can be expressed as ?
A particle starting from the origin $(0,0)$ moves in a straight line in the $(x, y)$ plane. Its coordinates at a later time are $(\sqrt 3,3)$ . The path of the particle makes with the $x -$ axis an angle of ....... $^o$