AP EAMCET · PHYSICS · Center of Mass Momentum and Collision
A body of mass 30 kg moving with a velocity \(20 \mathrm{~ms}^{-1}\) undergoes one dimensional elastic collision with another ball of same mass moving in the opposite direction with a velocity of \(30 \mathrm{~ms}^{-1}\). After collision the velocities of first and second bodies respectively are
- A \(25 \mathrm{~ms}^{-1}, 30 \mathrm{~ms}^{-1}\)
- B \(30 \mathrm{~ms}^{-1}, 30 \mathrm{~ms}^{-1}\)
- C \(30 \mathrm{~ms}^{-1}, 20 \mathrm{~ms}^{-1}\)
- D \(40 \mathrm{~ms}^{-1}, 15 \mathrm{~ms}^{-1}\)
Answer & Solution
Correct Answer
(C) \(30 \mathrm{~ms}^{-1}, 20 \mathrm{~ms}^{-1}\)
Step-by-step Solution
Detailed explanation
\(m_1=m_2=30 \mathrm{~kg}, u_1=20 \mathrm{~m} / \mathrm{s}, u_2=-30 \mathrm{~m} / \mathrm{s}\) By conservation of momentum,…
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