If velocities of 3 molecules are 5 m/s, -6m/s and 7 m/s respectively, then their mean squar evelocity in `m^(2)//s^(2)`

Question

If velocities of 3 molecules are 5 m/s, -6m/s and 7 m/s respectively, then their mean squar evelocity in `m^(2)//s^(2)`

If velocities of 3 molecules are 5 m/s, -6m/s and 7 m/s respectively, then their mean squar evelocity in `m^(2)//s^(2)`
A. `11m^(2)//s^(2)`
B. `36.7m^(2)//s^(2)`
C. `6m^(2)//s^(2)`
D. `2m^(2)//s^(2)`

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - B
`C^(2)=(C_(1)^(2)+C_(2)^(2)+C_(3)^(2))/(3)=(25+36+49)/(3)`
`=(110)/(3)=36.66`

5 views Answered 2023-02-05 15:29