Rotational MotionEasy
Question
A circular disc of moment of inertia of 0.1 kg-m2 and radius 0.1 m has a massless string passing around its circumference. Starting from rest, the disc acquires an angular velocity of 1 rev/sec in a time interval of 2 sec, when the string is pulled down by a force F. The force F is :-
Options
A.2πN
B.(π/2)N
C.πN
D.0.1πN
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