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The bob A of a pendulum released from 30° to the vertical hits another bob B of the same mass at rest on a table as shown in Fig. How high does the bob A rise after the collision? Neglect the size of the bobs and assume the collision to be elastic.
Asked by Abhay Last Modified
Answer 
Rohit Kumar Agarwal
10 Years of Expertise 📚 MBA + B.Tech | Master Science & Math with Smart, Result-Driven Learning! 🚀
In elastic collision the linear momentum is conserved .
linear momentum =mass x velocity =mv
here mass of A and B are same.
so if elastic collision occur then A bobs complete transfer it momentum on bobs B.their velocities interchanged
After collision A will come to rest and B moves with velocity of A.thus bob A would not rise after collision.
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