14) Two circular discs of same weight and thickness are made from metals having different densities. Which disc will have the larger rotational inertia about its central axis

15) The total kinetic energy of a hoop of mass 2 kg and radius 4 m sliding with linear velocity 8 m/sec and angular velocity 5 radian/sec is

16) A symmetrical body is rotating about its axis of symmetry, its moment of inertia about the axis of rotation being 2 kg -m2 and its rate of rotation 2 revolutions/see. The angular momentum of the body in kg-m2/sec is

17) The angular speed of a car while taking a circular turn of radius 100m at 36 km/hour, is

18) The torque produced by a force depends oni) the magnitude of the forceii) the direction of the force iii) the′point of application of the force relative to origin The correct answer is