146219 A large slab of mass \(5 \mathrm{~kg}\) lies on a smooth horizontal surface, with a block of mass \(4 \mathrm{~kg}\) lying on the top of it, the coefficient of friction between the block and the slab is 0.25 . If the block is pulled horizontally by a force of \(F=\) \(6 \mathrm{~N}\), the work done by the force of friction on the slab between the instants \(t=2 s\) and \(t=3 s\) is \(\left(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^{2}\right)\)

146220 A solid cylinder is rolling down on an inclined plane of angle \(\theta\). The coefficient of static friction between the plane and the cylinder is \(\mu_{s}\). The condition for the cylinder not to slip is

146221 A block of mass \(m\) is lying on the edge having inclination angle \(\alpha=\tan ^{-1}\left(\frac{1}{5}\right)\). Wedge is moving with a constant acceleration, \(\alpha=2 \mathrm{~ms}^{-2}\). The minimum value of coefficient of friction \(\mu\), so that \(\mathrm{m}\) remains stationary with respect to wedge is

146222 In the figure shown, a cubical block is held stationary against a rough wall by applying force ' \(F\) ', then incorrect statement among the following is

146219 A large slab of mass \(5 \mathrm{~kg}\) lies on a smooth horizontal surface, with a block of mass \(4 \mathrm{~kg}\) lying on the top of it, the coefficient of friction between the block and the slab is 0.25 . If the block is pulled horizontally by a force of \(F=\) \(6 \mathrm{~N}\), the work done by the force of friction on the slab between the instants \(t=2 s\) and \(t=3 s\) is \(\left(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^{2}\right)\)

146220 A solid cylinder is rolling down on an inclined plane of angle \(\theta\). The coefficient of static friction between the plane and the cylinder is \(\mu_{s}\). The condition for the cylinder not to slip is

146221 A block of mass \(m\) is lying on the edge having inclination angle \(\alpha=\tan ^{-1}\left(\frac{1}{5}\right)\). Wedge is moving with a constant acceleration, \(\alpha=2 \mathrm{~ms}^{-2}\). The minimum value of coefficient of friction \(\mu\), so that \(\mathrm{m}\) remains stationary with respect to wedge is

146222 In the figure shown, a cubical block is held stationary against a rough wall by applying force ' \(F\) ', then incorrect statement among the following is

146219 A large slab of mass \(5 \mathrm{~kg}\) lies on a smooth horizontal surface, with a block of mass \(4 \mathrm{~kg}\) lying on the top of it, the coefficient of friction between the block and the slab is 0.25 . If the block is pulled horizontally by a force of \(F=\) \(6 \mathrm{~N}\), the work done by the force of friction on the slab between the instants \(t=2 s\) and \(t=3 s\) is \(\left(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^{2}\right)\)

146220 A solid cylinder is rolling down on an inclined plane of angle \(\theta\). The coefficient of static friction between the plane and the cylinder is \(\mu_{s}\). The condition for the cylinder not to slip is

146221 A block of mass \(m\) is lying on the edge having inclination angle \(\alpha=\tan ^{-1}\left(\frac{1}{5}\right)\). Wedge is moving with a constant acceleration, \(\alpha=2 \mathrm{~ms}^{-2}\). The minimum value of coefficient of friction \(\mu\), so that \(\mathrm{m}\) remains stationary with respect to wedge is

146222 In the figure shown, a cubical block is held stationary against a rough wall by applying force ' \(F\) ', then incorrect statement among the following is

146219 A large slab of mass \(5 \mathrm{~kg}\) lies on a smooth horizontal surface, with a block of mass \(4 \mathrm{~kg}\) lying on the top of it, the coefficient of friction between the block and the slab is 0.25 . If the block is pulled horizontally by a force of \(F=\) \(6 \mathrm{~N}\), the work done by the force of friction on the slab between the instants \(t=2 s\) and \(t=3 s\) is \(\left(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^{2}\right)\)

146220 A solid cylinder is rolling down on an inclined plane of angle \(\theta\). The coefficient of static friction between the plane and the cylinder is \(\mu_{s}\). The condition for the cylinder not to slip is

146221 A block of mass \(m\) is lying on the edge having inclination angle \(\alpha=\tan ^{-1}\left(\frac{1}{5}\right)\). Wedge is moving with a constant acceleration, \(\alpha=2 \mathrm{~ms}^{-2}\). The minimum value of coefficient of friction \(\mu\), so that \(\mathrm{m}\) remains stationary with respect to wedge is

146222 In the figure shown, a cubical block is held stationary against a rough wall by applying force ' \(F\) ', then incorrect statement among the following is