Particle of masses `m, 2m,3m,…,nm` grams are placed on the same line at distance `l,2l,3l,…..,nl cm` from a fixed point. The distance of centre of mass of the particles from the fixed point in centimeters is :A. `((2n+1)l)/(3)`B. `(l)/(n+1)`C. `(n(n^(2)+1)l)/(2)`D. `(2l)/(n(n^(2)+1)`

Particle of masses `m, 2m,3m,…,nm` grams are placed on the same line

1.	Particle of masses `m, 2m,3m,…,nm` grams are placed on the same line at distance `l,2l,3l,…..,nl cm` from a fixed point. The distance of centre of mass of the particles from the fixed point in centimeters is :A. `((2n+1)l)/(3)`B. `(l)/(n+1)`C. `(n(n^(2)+1)l)/(2)`D. `(2l)/(n(n^(2)+1)`
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Particle of masses `m, 2m,3m,…,nm` grams are placed on the same line at distance `l,2l,3l,…..,nl cm` from a fixed point. The distance of centre of mass of the particles from the fixed point in centimeters is :A. `((2n+1)l)/(3)`B. `(l)/(n+1)`C. `(n(n^(2)+1)l)/(2)`D. `(2l)/(n(n^(2)+1)`

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