NEET Solved Paper 2016 Question 28

Question: 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?

Options:

A) $ \sqrt{gR} $

B) $ \sqrt{2gR} $

C) $ \sqrt{3gR} $

D) $ \sqrt{5gR} $

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Answer:

Correct Answer: D

Solution:

  • When minimum speed of body is $ \sqrt{5gR}, $ then no matter from where it enters the loop, it will complete full vertical loop.