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Q78...i conserved initial angular momentum...but for final angular momentum i am nt getting it right

Q78...i conserved initial angular momentum...but for final angular momentum i am nt getting it right

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Grade:11

1 Answers

Chandan
121 Points
6 years ago
you have to conserve kinetic and potential energy
you cant conserve momentum as com of system is changing as ball is moving up
hence there is a external force
hope it helps
please approve if it does

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