Work, Energy, Power & Collision / कार्य, ऊर्जा और शक्ति
JEE Main & Advanced
Physics
Work, Energy, Power & Collision / कार्य, ऊर्जा और शक्ति
Question Bank
Conservation of Energy and Momentum
question_answer
A frictionless track ABCDE ends in a circular loop of radius R. A body slides down the track from point A which is at a height h = 5 cm. Maximum value of R for the body to successfully complete the loop is [MP PMT/PET 1998]
A) 5 cm
B) \[\frac{15}{4}\,cm\]
C) \[\frac{10}{3}\,cm\]
D) 2 cm
Correct Answer:
D
Solution :
Condition for vertical looping \[h=\frac{5}{2}r=5cm\] \ r = 2 cm