Physics Work, Energy, Power and Collision NTA Abhiyas Question - Center of Mass and Momentum Conservation (Collision) MCQ (Single Correct)

Three-point masses 1. 0 kg, 1. 5 kg and 2. 5 kg are placed at the vertices of a right-angle triangle of sides 4. 0 cm, 3. 0 cm and 5. 0 cm, as shown in the figure. The center of mass of the system is

A
0. 6 cm right and 2. 0 cm above 1 kg mass
B
2. 0 cm right and 0. 9 cm above 1 kg mass
C
0. 9 cm right and 2. 0 cm above 1 kg mass
D
1. 5 cm right and 1. 2 cm above 1 kg mass

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The correct answer is:
C

0. 9 cm right and 2. 0 cm above 1 kg mass

Let us assume that the origin of the coordinate system is at the location of 1 kg mass, then

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