LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
55.8k views
in Physics by (6.0k points)

A stone tied to a string of length L is whirled in a vertical circle with the other end of the string at the centre. At a certain instant of time, the stone is at its lowest position and has a speed u. The magnitude of the change in its velocity as it reaches a position where the string is horizontal is

(a) u2-2gL

(b) 2gL

(c) u2-gl

(d) 2(u2-gL)

1 Answer

+1 vote
by (11.9k points)
selected by
 
Best answer

Correct Option  (d) 2(u2-gL)

Explanation:

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...