Question

A stone of mass 1 kg tied to a light string of length (l = 10) m is whirling in a circular path in the vertical
plane. If the ratio of the maximum to minimum tensions in the string is 3, find the speeds of the stone at
the lowest and highest points.​

Answer 1

Since the maximum tension 

TB

 in the string moving in the vertical circle is at the bottom and minimum tension 

TT

 is at the top.             \ 

TB=mv2BL+mg

 and 

TT=mv2TL−mg

             \ 

TBTT=mv2BL+mgmv2TL−mg=41

 or 

v2B+gLv2T−gL=41

             or 

v2

Answer 2

Answer:

this is a your answer to the question answer