Year: 2017
Topic: System of particles and rotational motion
Time :
1.
A rope is wound around a hollow cylinder of mass 3 kg and radius 40 cm. What is the angular acceleration of the cylinder if the rope is pulled with a force of 30 N?
(1). \(0.25\, \text{rad}\, s^{−2}\)
(2). \(25\, \text{rad}\, s^{−2}\)
(3). \(5\, m\,s^{−2}\)
(4). \(25\, m\,s^{−2}\)