AP EAMCET · PHYSICS · Center of Mass Momentum and Collision
The centre of mass of three particles of masses \(1 \mathrm{~kg}, 2 \mathrm{~kg}\) and \(3 \mathrm{~kg}\) is at \((2,2,2)\). The position of the fourth mass of \(4 \mathrm{~kg}\) to be placed in the system as that the new centre of mass is at \((0,0,0)\) is.
- A \((-3,-3,-3)\)
- B \((-3,3,-3)\)
- C \((2,3,-3)\)
- D \((2,-2,3)\)
Answer & Solution
Correct Answer
(A) \((-3,-3,-3)\)
Step-by-step Solution
Detailed explanation
\(m_1=1 \mathrm{~kg}, m_2=2 \mathrm{~kg}, m_3=3 \mathrm{~kg}\) Position of centre of mass \((2,2,2)\) \(m_4=4 \mathrm{~kg}\) New position of centre of mass \((0,0,0)\). For initial position,…
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