Physics-
General
Easy
Question
A solid sphere rolls without slipping along the track shown in fig. The sphere starts from rest from a height h above the bottom of a loop radius R which is much larger than the radius of the sphere r. The minimum value of h for the sphere to complete the loop is
- 2.1R
- 2.7R
- 2.3R
- 2.5R
The correct answer is: 2.7R
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