Duplicate Question
The question on this page has been marked as a duplicate question.
Original Question
A small mass m swings in a horizontal circle of radius r at the end of a string of length Li and negligible mass, which makes a...Asked by Anonymous
A small mass m swings in a horizontal circle of radius r at the end of a string of length Li and
negligible mass, which makes an angle i with the vertical. The string is slowly shortened (for
example by pulling it through a hole in its support) until the final length is Lf and the string is
making an angle f with the vertical. Find an expression for Lf in terms of Li; i and f .
negligible mass, which makes an angle i with the vertical. The string is slowly shortened (for
example by pulling it through a hole in its support) until the final length is Lf and the string is
making an angle f with the vertical. Find an expression for Lf in terms of Li; i and f .
Answers
Answered by
Elena
The height of pivot point above the plane of rotation is h
cosi=h/Li
cosf=h/Lf
Lf=Li•cosi/cosf
cosi=h/Li
cosf=h/Lf
Lf=Li•cosi/cosf
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.