A) 0.5
B) 1
C) \[\frac{\sqrt{3}}{2}\]
D) \[\frac{2}{\sqrt{3}}\]
Correct Answer: A
Solution :
The two bodies will collide at the highest point if both cover the same vertical height in the same time. So, \[\frac{v_{1}^{2}{{\sin }^{2}}{{30}^{o}}}{2g}=\frac{v_{2}^{2}}{2g}\] or \[\frac{v_{2}^{2}}{v_{1}^{2}}={{\sin }^{2}}{{30}^{o}}\] \[\Rightarrow \] \[\frac{{{v}_{2}}}{{{v}_{1}}}=\sin {{30}^{o}}\] \[=\frac{1}{2}=0.5\]
You need to login to perform this action.
You will be redirected in
3 sec
