A particle of mass m is released from a height H on a smooth curved surface which ends into a vertical loop of radius R, as shown. Choose the correct alternative(s) if H=2R.
A
The particle reaches the top of the loop with zero velocity.
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B
The particle cannot reach the top of the loop.
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C
The particle breaks of at a height h=R from the base of the loop
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D
The particle breaks off at a height h from the base of the loop such that R<h<2R
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Solution
The correct options are B The particle cannot reach the top of the loop. D The particle breaks off at a height h from the base of the loop such that R<h<2R