TS EAMCET · Physics · Center of Mass Momentum and Collision
Ball \(A\) of mass \(50 \mathrm{gm}\) and speed \(10 \mathrm{~m} / \mathrm{s}\) collides with other ball \(B\) of mass \(10 \mathrm{gm}\) and speed \(15 \mathrm{~m} / \mathrm{s}\) travelling in opposite direction with each other. Determine the final speed of ball \(B\), if the coefficient of restitution is \(\frac{2}{5}\).
- A \(\frac{40}{3} \mathrm{~m} / \mathrm{s}\)
- B \(\frac{75}{3} \mathrm{~m} / \mathrm{s}\)
- C \(\frac{91}{8} \mathrm{~m} / \mathrm{s}\)
- D \(\frac{85}{6} \mathrm{~m} / \mathrm{s}\)
Answer & Solution
Correct Answer
(D) \(\frac{85}{6} \mathrm{~m} / \mathrm{s}\)
Step-by-step Solution
Detailed explanation
Given, \(m_A=50 \mathrm{gm}, u_A=10 \mathrm{~m} / \mathrm{s}, m_B=10 \mathrm{gm}\) \(u_B=-15 \mathrm{~m} / \mathrm{s}\) and coefficient of restitution, \(e=\frac{2}{5}\) The collision of ball \(A\) and \(B\) is shown as below,…
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