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 0, where is the angle by which it has rotated, is given as k0². If its moment of inertia is I, then the angular acceleration of the disc is k (a) 0 21 (b) k -0 I (c) k -0 47 2k (d) -0 I
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 0, where is the angle by which it has rotated, is given as k0². If its moment of inertia is I, then the angular acceleration of the disc is k (a) 0 21 (b) k -0 I (c) k -0 47 2k (d) -0 I
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Transcribed Image Text: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 0, where is the angle by which it has rotated, is given as
k0². If its moment of inertia is I, then the angular acceleration
of the disc is
k
(a) 0
21
(b)
k
-0
I
k
(c) Ꮎ
41
2k
(d) Ө
I
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