When two bodies of masses \[{{m}_{1}}\]and \[{{m}_{2}}\]moving with velocities \[{{u}_{1}}\]and \[{{u}_{2}}\]in the same direction collide with each other and \[{{v}_{1}}\]and\[{{v}_{2}}\] are their velocities after collision in the same direction, then

\[{{m}_{1}}{{v}_{1}}+{{m}_{2}}{{v}_{2}}={{m}_{2}}{{u}_{2}}-{{m}_{1}}{{u}_{1}}\]

\[{{m}_{1}}{{v}_{1}}+{{m}_{2}}{{v}_{2}}={{m}_{1}}{{u}_{1}}-{{m}_{2}}{{u}_{2}}\]

\[{{m}_{2}}{{v}_{2}}+{{m}_{2}}{{u}_{1}}={{m}_{2}}{{v}_{1}}+{{m}_{1}}{{v}_{2}}\]

\[{{m}_{1}}{{u}_{1}}+{{m}_{2}}{{u}_{2}}={{m}_{1}}{{v}_{1}}+{{m}_{2}}{{v}_{2}}\]

When two bodies of masses \[{{m}_{1}}\]and \[{{m}_{2}}\]moving with ve

1.	When two bodies of masses \[{{m}_{1}}\]and \[{{m}_{2}}\]moving with velocities \[{{u}_{1}}\]and \[{{u}_{2}}\]in the same direction collide with each other and \[{{v}_{1}}\]and\[{{v}_{2}}\] are their velocities after collision in the same direction, then
A.	\[{{m}_{1}}{{v}_{1}}+{{m}_{2}}{{v}_{2}}={{m}_{2}}{{u}_{2}}-{{m}_{1}}{{u}_{1}}\]
B.	\[{{m}_{1}}{{v}_{1}}+{{m}_{2}}{{v}_{2}}={{m}_{1}}{{u}_{1}}-{{m}_{2}}{{u}_{2}}\]
C.	\[{{m}_{2}}{{v}_{2}}+{{m}_{2}}{{u}_{1}}={{m}_{2}}{{v}_{1}}+{{m}_{1}}{{v}_{2}}\]
D.	\[{{m}_{1}}{{u}_{1}}+{{m}_{2}}{{u}_{2}}={{m}_{1}}{{v}_{1}}+{{m}_{2}}{{v}_{2}}\]
Answer» E.

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When two bodies of masses \[{{m}_{1}}\]and \[{{m}_{2}}\]moving with velocities \[{{u}_{1}}\]and \[{{u}_{2}}\]in the same direction collide with each other and \[{{v}_{1}}\]and\[{{v}_{2}}\] are their velocities after collision in the same direction, then

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