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

19) The ratio of the speed of a rolling cylinder to the speed of sliding cylinder is