29) A flywheel of moment of inertia 20 kg-m″ is acted upon by a tangential force of 5 N at 2 m from its axis, for 3 seconds. The increase in angular velocity in radian persecond is

30) A disc of mass 4 kg, radius 0.5m and moment of inertia 3 kg-m2 rolls on a horizontal surface so that its center moves with speed 5 m/see. Kinetic energy of the disc is

31) When a circular wheel rolls on a straight track, then the shape of body centrode and space centrode respectively are

32) Select the correct statement

33) At the instantaneous center, the velocity of the moving lamina at any instant is