Join Sarthaks eConnect Today - Largest Online Education Community!
+1 vote
in Physics by (71.9k points)

A stationary horizontal disc is free to rotate about its axis. When a torque is applied on it, its kinetic energy as a function of θ, where θ is the angle by which is has rotated, is given as kθ2 . If its moment of inertia is I then the angular acceleration of the disc is

(1) k/I  θ

(2)  k/2I θ

(3)  k/4I θ

(4)  2k/I θ

1 Answer

+1 vote
by (68.1k points)
selected by
Best answer

Correct option  (4)  2k/I θ


Related questions

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.