Match the following:
\begin{tabular}{|l|l|}
\hline \multicolumn{1}{|c|}{ Column I } & \multicolumn{1}{c|}{ Column II } \\
\hline i. Inelastic collisions & a. \( \begin{array}{l}\text { kinetic energy of the system } \\
\text { may decrease }\end{array} \) \\
\hline ii. Elastic collisions & b. \( \begin{array}{l}\text { kinetic energy of the system } \\
\text { may increase }\end{array} \) \\
\hline \( \begin{array}{l}\text { iii. } \text { Total work done is } \\
\text { zero }\end{array} \) & c. \( \begin{array}{l}\text { kinetic energy of the system } \\
\text { may remain constant }\end{array} \) \\
\hline \( \begin{array}{l}\text { iv. } \text { Non-conservative } \\
\text { forces are not } \\
\text { present }\end{array} \) & \( \begin{array}{l}\text { d. } \text { just before and after } \\
\text { collision, momentum } \\
\text { remains constant }\end{array} \) \\
\hline
\end{tabular}
P
W
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