MCQOPTIONS
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MCQOPTIONS
| 1. |
A person travels along a straight road for the first half time with a velocity \[{{v}_{1}}\] and the next half time with a velocity \[{{v}_{2}}\] . The mean velocity \[V\] of the man is [RPET 1999; BHU 2002] |
| A. | \[\frac{2}{V}=\frac{1}{{{v}_{1}}}+\frac{1}{{{v}_{2}}}\] |
| B. | \[V=\frac{{{v}_{1}}+{{v}_{2}}}{2}\] |
| C. | \[V=\sqrt{{{v}_{1}}{{v}_{2}}}\] |
| D. | \[V=\sqrt{\frac{{{v}_{1}}}{{{v}_{2}}}}\] |
| Answer» C. \[V=\sqrt{{{v}_{1}}{{v}_{2}}}\] | |