A) \[2{{v}_{1}}\]
B) \[{{v}_{1}}\]
C) \[-{{v}_{1}}\]
D) 0
Correct Answer: B
Solution :
Given, mass \[{{m}_{1}}={{m}_{2}}=m\] and velocity \[{{u}_{1}}={{v}_{2}}\]for elastic collision \[{{v}_{2}}=\left( \frac{{{m}_{2}}-{{m}_{1}}}{{{m}_{1}}+{{m}_{2}}} \right){{u}_{2}}+\frac{2{{m}_{1}}{{u}_{1}}}{{{m}_{1}}+{{m}_{2}}}\] After putting given values we will get. \[{{v}_{2}}=\frac{2{{m}_{1}}{{v}_{1}}}{2{{m}_{1}}}\] \[{{v}_{2}}={{v}_{1}}\]You need to login to perform this action.
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