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Four particles have velocity 1,0, 2 and ...

Four particles have velocity 1,0, 2 and `3 ms^(-1)` The root mean square velocity of the particles is ......

A

`3.5 ms^(-1)`

B

`sqrt(3.5) ms^(-1)`

C

`1.5 ms^(-1)`

D

`0 `

Text Solution

Verified by Experts

The correct Answer is:
B
`V_(rms) = sqrt( (V_1^2 + V_2^2 + …. + V_n^2)/(n) )`
` V_(rms) = sqrt( (1^2 + 0^2 + 2^2 + 3^2)/(4) ) = sqrt(14/4) = sqrt(3.5) ms^(-1)`
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