The centre of masses of two particles wi

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Target Exam

CUET

Subject

Physics

Chapter

System of Particle and Rotational Motion

Question:

The centre of masses of two particles with masses 2 kg and 1 kg located at (1,0,1) and (2,2,0) is located at :

Options:

4/3, 2/3, 2/3

2/3, 4/3, 2/3

2/3, 2/3, 4/3

1/3, 2/3, 2/3

Correct Answer:

4/3, 2/3, 2/3

Explanation:

Sum of masses = 2 + 1 = 3

x-coordinate : (2 x 1 + 1 x 2)/3 = 4/3
y-coordinate : (2 x 0 + 1 x 2)/3 = 2/3
z-coordinate : (2 x 1 + 1 x 0)/3 = 2/3.