A) \[\frac{{{v}^{2}}}{{{R}^{2}}}\]
B) \[\frac{{{R}^{2}}}{{{v}^{2}}+{{R}^{2}}}\]
C) \[\frac{{{v}^{2}}}{{{v}^{2}}+{{R}^{2}}}\]
D) \[{{v}^{2}}+{{R}^{2}}\]
Correct Answer: A
Solution :
\[\frac{Rotational\,\,KE}{Translational\,\,KE}=\frac{\frac{1}{2}l{{\omega }^{2}}}{\frac{1}{2}m{{v}^{2}}}\] \[=\frac{m{{v}^{2}}\frac{{{v}^{2}}}{{{R}^{2}}}}{m{{v}^{2}}}=\frac{{{v}^{2}}}{{{R}^{2}}}\]You need to login to perform this action.
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