146154 A small block of mass \(20 \mathrm{~g}\) and charge \(4 \mathrm{mC}\) is released on a long smooth inclined plane of inclination angle of \(45^{\circ}\), A uniform horizontal magnetic field of \(1 \mathrm{~T}\) is acting parallel to the surface, as shown in the figure. The time from the start when the block loses contact with the surface of the plane is

146155 A block of mass \(5 \mathrm{~kg}\) resting on a horizontal surface is connected by a cord, passing over a light frictionless pulley to a hanging block of mass \(5 \mathrm{~kg}\). The coefficient of kinetic friction between the block and the surface is 0.5 . Tension in the cord is \(:\left(g=9.8 \mathrm{~m} / \mathrm{sec}^{2}\right)\)

146156 A body of \(5 \mathrm{~kg}\) weight kept on a rough inclined plane of angle \(30^{\circ}\) starts sliding with a constant velocity. Then the coefficient of friction is (assume \(g=10 \mathrm{~m} / \mathrm{s}^{2}\) )

146157 A uniform sphere of radius \(R\) and mass \(m\) is placed on an inclined plane which makes an angle \(45^{\circ}\) to the horizontal. For which of the following value of coefficient of friction, the sphere rolls without slipping.

146154 A small block of mass \(20 \mathrm{~g}\) and charge \(4 \mathrm{mC}\) is released on a long smooth inclined plane of inclination angle of \(45^{\circ}\), A uniform horizontal magnetic field of \(1 \mathrm{~T}\) is acting parallel to the surface, as shown in the figure. The time from the start when the block loses contact with the surface of the plane is

146155 A block of mass \(5 \mathrm{~kg}\) resting on a horizontal surface is connected by a cord, passing over a light frictionless pulley to a hanging block of mass \(5 \mathrm{~kg}\). The coefficient of kinetic friction between the block and the surface is 0.5 . Tension in the cord is \(:\left(g=9.8 \mathrm{~m} / \mathrm{sec}^{2}\right)\)

146156 A body of \(5 \mathrm{~kg}\) weight kept on a rough inclined plane of angle \(30^{\circ}\) starts sliding with a constant velocity. Then the coefficient of friction is (assume \(g=10 \mathrm{~m} / \mathrm{s}^{2}\) )

146157 A uniform sphere of radius \(R\) and mass \(m\) is placed on an inclined plane which makes an angle \(45^{\circ}\) to the horizontal. For which of the following value of coefficient of friction, the sphere rolls without slipping.

146154 A small block of mass \(20 \mathrm{~g}\) and charge \(4 \mathrm{mC}\) is released on a long smooth inclined plane of inclination angle of \(45^{\circ}\), A uniform horizontal magnetic field of \(1 \mathrm{~T}\) is acting parallel to the surface, as shown in the figure. The time from the start when the block loses contact with the surface of the plane is

146155 A block of mass \(5 \mathrm{~kg}\) resting on a horizontal surface is connected by a cord, passing over a light frictionless pulley to a hanging block of mass \(5 \mathrm{~kg}\). The coefficient of kinetic friction between the block and the surface is 0.5 . Tension in the cord is \(:\left(g=9.8 \mathrm{~m} / \mathrm{sec}^{2}\right)\)

146156 A body of \(5 \mathrm{~kg}\) weight kept on a rough inclined plane of angle \(30^{\circ}\) starts sliding with a constant velocity. Then the coefficient of friction is (assume \(g=10 \mathrm{~m} / \mathrm{s}^{2}\) )

146157 A uniform sphere of radius \(R\) and mass \(m\) is placed on an inclined plane which makes an angle \(45^{\circ}\) to the horizontal. For which of the following value of coefficient of friction, the sphere rolls without slipping.

146154 A small block of mass \(20 \mathrm{~g}\) and charge \(4 \mathrm{mC}\) is released on a long smooth inclined plane of inclination angle of \(45^{\circ}\), A uniform horizontal magnetic field of \(1 \mathrm{~T}\) is acting parallel to the surface, as shown in the figure. The time from the start when the block loses contact with the surface of the plane is

146155 A block of mass \(5 \mathrm{~kg}\) resting on a horizontal surface is connected by a cord, passing over a light frictionless pulley to a hanging block of mass \(5 \mathrm{~kg}\). The coefficient of kinetic friction between the block and the surface is 0.5 . Tension in the cord is \(:\left(g=9.8 \mathrm{~m} / \mathrm{sec}^{2}\right)\)

146156 A body of \(5 \mathrm{~kg}\) weight kept on a rough inclined plane of angle \(30^{\circ}\) starts sliding with a constant velocity. Then the coefficient of friction is (assume \(g=10 \mathrm{~m} / \mathrm{s}^{2}\) )

146157 A uniform sphere of radius \(R\) and mass \(m\) is placed on an inclined plane which makes an angle \(45^{\circ}\) to the horizontal. For which of the following value of coefficient of friction, the sphere rolls without slipping.