Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Open MARKS Web Download App
Search any question & find its solution
Question: Answered & Verified by Expert
A frictionless track $A B C D E$ ends in a circular loop of radius $R$. A body slides down the track from point $A$ which is at $a$ height $h=5 \mathrm{~cm}$. Maximum value of $R$ for the body to successfully complete the loop is

PhysicsWork Power EnergyJEE Main
Options:
  • A $5 \mathrm{~cm}$
  • B $\frac{15}{4} \mathrm{~cm}$
  • C $\frac{10}{3} \mathrm{~cm}$
  • D $2 \mathrm{~cm}$
Solution:
2089 Upvotes Verified Answer
The correct answer is: $2 \mathrm{~cm}$
Condition for vertical looping $\quad h=\frac{5}{2} r=5 \mathrm{~cm} \quad \therefore r=2 \mathrm{~cm}$

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.

Use on iOS or Desktop Download from Google Play