366257 A block of mass \(2\;kg\) is attached to one end of a massless rod of length \(\dfrac{1}{\pi} m\). The rod is fixed to a horizontal plane at the other end such that the block and rod are free to revolve on a horizontal plane. The coefficient of friction between the block and surface is 0.1 . Block is made to rotate with uniform speed by applying a constant external force in tangential direction on the block. The work done by external force when the rod rotates by \(90^{\circ}\) is
366258 A body having a moment of inertia about its axis of rotation equal to \(3\;kg\;{m^2}\) is rotating with angular velocity of \(3\,rad{s^{ - 1}}\). Kinetic energy of this rotating body is same as that of a body of mass \(27\;kg\) moving with velocity \(v\). The value of \(v\) is
366257 A block of mass \(2\;kg\) is attached to one end of a massless rod of length \(\dfrac{1}{\pi} m\). The rod is fixed to a horizontal plane at the other end such that the block and rod are free to revolve on a horizontal plane. The coefficient of friction between the block and surface is 0.1 . Block is made to rotate with uniform speed by applying a constant external force in tangential direction on the block. The work done by external force when the rod rotates by \(90^{\circ}\) is
366258 A body having a moment of inertia about its axis of rotation equal to \(3\;kg\;{m^2}\) is rotating with angular velocity of \(3\,rad{s^{ - 1}}\). Kinetic energy of this rotating body is same as that of a body of mass \(27\;kg\) moving with velocity \(v\). The value of \(v\) is
366257 A block of mass \(2\;kg\) is attached to one end of a massless rod of length \(\dfrac{1}{\pi} m\). The rod is fixed to a horizontal plane at the other end such that the block and rod are free to revolve on a horizontal plane. The coefficient of friction between the block and surface is 0.1 . Block is made to rotate with uniform speed by applying a constant external force in tangential direction on the block. The work done by external force when the rod rotates by \(90^{\circ}\) is
366258 A body having a moment of inertia about its axis of rotation equal to \(3\;kg\;{m^2}\) is rotating with angular velocity of \(3\,rad{s^{ - 1}}\). Kinetic energy of this rotating body is same as that of a body of mass \(27\;kg\) moving with velocity \(v\). The value of \(v\) is
366257 A block of mass \(2\;kg\) is attached to one end of a massless rod of length \(\dfrac{1}{\pi} m\). The rod is fixed to a horizontal plane at the other end such that the block and rod are free to revolve on a horizontal plane. The coefficient of friction between the block and surface is 0.1 . Block is made to rotate with uniform speed by applying a constant external force in tangential direction on the block. The work done by external force when the rod rotates by \(90^{\circ}\) is
366258 A body having a moment of inertia about its axis of rotation equal to \(3\;kg\;{m^2}\) is rotating with angular velocity of \(3\,rad{s^{ - 1}}\). Kinetic energy of this rotating body is same as that of a body of mass \(27\;kg\) moving with velocity \(v\). The value of \(v\) is