A) \[30{}^\circ \]
B) \[45{}^\circ \]
C) \[60{}^\circ \]
D) \[90{}^\circ \]
Correct Answer: A
Solution :
Along horizontal direction. \[mu\,\sin \,{{\theta }_{1}}=mv\,\,\sin \,{{\theta }_{2}}\] ?(i) \[eu\,\,\cos \,{{\theta }_{1}}=v\,\,\cos \,{{\theta }_{2}}\] ?(ii) Here, \[e=\frac{Velocity\,of\,separation}{Velocity\,of\,approach}\] Solving, Eqs. (i) and (ii), we get \[{{\theta }_{2}}={{\tan }^{-1}}\,\left( \frac{1}{0.57}\tan \,{{45}^{o}} \right)={{60}^{o}}\] \[\Rightarrow \] \[\beta ={{30}^{o}}\]You need to login to perform this action.
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