+3 votes
in JEE by kratos

In each situation of column-I a mass distribution is given and information regarding x and y-coordinate of centre of mass is given in column-II. Match the figures in column-I with corresponding information of centre of mass in column-II.

| Column-I | Column-II |
| (A) An equilateral triangular wire frame is made using three thin uniform rods of mass per unit lengths λ, λ2 and λ3 as shown | (p) xcm≥ 0 |
| (B) A square frame is made using per unit length lengths λ, λ2 , λ3 and λ4 as shown | (q) ycm ≥ 0 |
| (C) A circular wire frame is made of two uniform semicircular wires of same radius and of mass per unit length λ and λ2 as shown | (r) xcm < 0 |
| (D) A circular wire frame is made wires of same radius and mass per unit length λ, λ2 , λ3 and λ4 as shown | (*) ycm < 0 |

1 Answer

+5 votes
by kratos
 
Best answer

Correct option: (A) q,r (B) p, (C) p, (D) p,s

Explanation:

(A) Centre of mass **** in second quadrant.

(B), (C) and (D) Centre of mass **** on y-axis and below x-axis.

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