A box has been placed on train moving uniformly with speed \[{{V}_{0}}.\] The box contains ideal gas. The value of root mean square speed with respect to an observer present in the trains is \[{{V}_{1}}.\] What will be the value of root mean square speed with respect to an observer standing on the platform?

• A. \[{{V}_{1}}+{{V}_{0}}\]
• B. \[{{V}_{1}}\]
• C. \[{{\{V_{1}^{2}+V_{0}^{2}\}}^{1/2}}\]
• D. None