Particles of masses m, 2m , 3m …..nm grams are placed on the same line at distances l,2l,3l,…nl cm from a fixed point. The distance of centre of mass of the particles from the fixed point in centimetre is

Particles of masses m, 2m , 3m …..nm grams are placed on the same li

1.	Particles of masses m, 2m , 3m …..nm grams are placed on the same line at distances l,2l,3l,…nl cm from a fixed point. The distance of centre of mass of the particles from the fixed point in centimetre is
Answer» <html><body><p>`((2n+<a href="https://interviewquestions.tuteehub.com/tag/1-256655" style="font-weight:bold;" target="_blank" title="Click to know more about 1">1</a>)l)/(3)`<br/>`(l)/(n+1)`<br/>`(n(n^(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)+1)l)/(2)`<br/>`(<a href="https://interviewquestions.tuteehub.com/tag/2l-300409" style="font-weight:bold;" target="_blank" title="Click to know more about 2L">2L</a>)/(n(n^(2)+1))`</p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :A</body></html>