Year: 2019
Topic: System of particles and rotational motion
Time :
1. A solid cylinder of mass 2kg and radius 4cm is rotating about its axis atthe rate of 3 rpm. The torque required to stop it after 2π revolutions is
(1). 2 × 10 6N m
(2). 2 × 10 −6N m
(3). 2 × 10 −3N m
(4). 12 × 10 −4N