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Work Energy and Power question

2016 · Q146
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Work Energy and Power question

2016 · Q146

NEETPhysicsWork Energy and PowerMCQ+4 / −1
What is the minimum velocity with which a body of mass m must enter a vertical loop of radius R so that it can complete the loop?
  1. A
    3gR\sqrt {3gR}3gR​
  2. B
    5gR\sqrt {5gR}5gR​
  3. C
    gR\sqrt {gR}gR​
  4. D
    2gR\sqrt {2gR}2gR​
View written solutionFree

Correct answer: B

To complete the loop a body must enter a vertical loop of radius R with the minimum velocity v = 5gR\sqrt {5gR} 5gR​.

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