The RMS speed of three molecules equal to 20 metre per second if the speed of the first two molecule are 15 metre per second and 25 metre per second the speed of third molecule is??????
Answers
Answered by
1
Answer: Let speed of third molecule be u.
Now for given condition.
( 20^2) = [(15^2)+(25^2)+(u^2)]/3
=> u^2 = 1200 - [225 + 625]
=> u = √350
Similar questions