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 
where 
is the angle by which it has rotated, is given as 
. If its moment of inertia is I then the angular acceleration of the disc is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
JEE Main 2019
Work done by torque is responsible for change in kinetic energy.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
A rod of length is pivoted at one end. It is raised such that if makes an angle of from the horiz…
A mass of is suspended vertically by a rope from the roof. When a horizontal force is applied on t…
To mop-clean a floor, a cleaning machine presses a circular mop of radius vertically down with a t…
A homogeneous solid cylindrical roller of radius and mass is pulled on a cricket pitch by a horiz…
A rigid massless rod of length has two masses attached at each end as shown in the figure. The rod…
Two identical spherical balls of mass and radius each are stuck on two ends of a rod of length a…