146178 A child is on a merry-go-round, standing at a distance of \(2 \mathrm{~m}\) from the centre. The coefficient of static friction between the child and the surface of merry-go-round is 0.8 . At what maximum angular velocity can the merry-goround be rotated before the child slips? (Take, \(\mathbf{g}=\mathbf{1 0} \mathbf{~ m} / \mathbf{s}^{2}\) )

146179 A movable steel plate is placed between fixed steel and brass plates and the stack of plates is subjected to a weight of \(100 \mathrm{~N}\) as shown in the figure. The coefficient of kinetic friction for steel on steel is 0.57 and for steel on brass is 0.44. Assuming that the entire weight comes into the stack and that the weight of the plates is negligible in comparison to the applied weight, the force required to move the middle plate (in \(\mathbf{N}\) ) is

146180 A block of mass \(5 \mathrm{~kg}\) is pulled by a force \(F\) as shown in the figure. If the coefficient of friction is 0.1 , then the force needed to accelerate the block to \(3 \mathrm{~m} / \mathrm{s}^{2}\) to the right is close to

146181 Sand is to be piled up on a horizontal ground in the form of a regular cone of a fixed base of radius \(R\). coefficient of static friction between the sand layers is \(\mu\). Maximum volume of the sand can be piled up in the form of cone without slipping on the ground is

146182 A block of mass \(2 \mathrm{~kg}\) is being pushed against a wall by a force \(F=90 \mathrm{~N}\) as shown in the figure. If the coefficient of friction is 0.25 . Then the magnitude of acceleration of the block is (Take,
\(\left.\mathbf{g}=\mathbf{1 0} \mathbf{~ m s}^{-\mathbf{2}}\right)\left(\sin 37^{\circ}=\frac{3}{5}\right)\)

146178 A child is on a merry-go-round, standing at a distance of \(2 \mathrm{~m}\) from the centre. The coefficient of static friction between the child and the surface of merry-go-round is 0.8 . At what maximum angular velocity can the merry-goround be rotated before the child slips? (Take, \(\mathbf{g}=\mathbf{1 0} \mathbf{~ m} / \mathbf{s}^{2}\) )

146179 A movable steel plate is placed between fixed steel and brass plates and the stack of plates is subjected to a weight of \(100 \mathrm{~N}\) as shown in the figure. The coefficient of kinetic friction for steel on steel is 0.57 and for steel on brass is 0.44. Assuming that the entire weight comes into the stack and that the weight of the plates is negligible in comparison to the applied weight, the force required to move the middle plate (in \(\mathbf{N}\) ) is

146180 A block of mass \(5 \mathrm{~kg}\) is pulled by a force \(F\) as shown in the figure. If the coefficient of friction is 0.1 , then the force needed to accelerate the block to \(3 \mathrm{~m} / \mathrm{s}^{2}\) to the right is close to

146181 Sand is to be piled up on a horizontal ground in the form of a regular cone of a fixed base of radius \(R\). coefficient of static friction between the sand layers is \(\mu\). Maximum volume of the sand can be piled up in the form of cone without slipping on the ground is

146182 A block of mass \(2 \mathrm{~kg}\) is being pushed against a wall by a force \(F=90 \mathrm{~N}\) as shown in the figure. If the coefficient of friction is 0.25 . Then the magnitude of acceleration of the block is (Take,
\(\left.\mathbf{g}=\mathbf{1 0} \mathbf{~ m s}^{-\mathbf{2}}\right)\left(\sin 37^{\circ}=\frac{3}{5}\right)\)

146178 A child is on a merry-go-round, standing at a distance of \(2 \mathrm{~m}\) from the centre. The coefficient of static friction between the child and the surface of merry-go-round is 0.8 . At what maximum angular velocity can the merry-goround be rotated before the child slips? (Take, \(\mathbf{g}=\mathbf{1 0} \mathbf{~ m} / \mathbf{s}^{2}\) )

146179 A movable steel plate is placed between fixed steel and brass plates and the stack of plates is subjected to a weight of \(100 \mathrm{~N}\) as shown in the figure. The coefficient of kinetic friction for steel on steel is 0.57 and for steel on brass is 0.44. Assuming that the entire weight comes into the stack and that the weight of the plates is negligible in comparison to the applied weight, the force required to move the middle plate (in \(\mathbf{N}\) ) is

146180 A block of mass \(5 \mathrm{~kg}\) is pulled by a force \(F\) as shown in the figure. If the coefficient of friction is 0.1 , then the force needed to accelerate the block to \(3 \mathrm{~m} / \mathrm{s}^{2}\) to the right is close to

146181 Sand is to be piled up on a horizontal ground in the form of a regular cone of a fixed base of radius \(R\). coefficient of static friction between the sand layers is \(\mu\). Maximum volume of the sand can be piled up in the form of cone without slipping on the ground is

146182 A block of mass \(2 \mathrm{~kg}\) is being pushed against a wall by a force \(F=90 \mathrm{~N}\) as shown in the figure. If the coefficient of friction is 0.25 . Then the magnitude of acceleration of the block is (Take,
\(\left.\mathbf{g}=\mathbf{1 0} \mathbf{~ m s}^{-\mathbf{2}}\right)\left(\sin 37^{\circ}=\frac{3}{5}\right)\)

146178 A child is on a merry-go-round, standing at a distance of \(2 \mathrm{~m}\) from the centre. The coefficient of static friction between the child and the surface of merry-go-round is 0.8 . At what maximum angular velocity can the merry-goround be rotated before the child slips? (Take, \(\mathbf{g}=\mathbf{1 0} \mathbf{~ m} / \mathbf{s}^{2}\) )

146179 A movable steel plate is placed between fixed steel and brass plates and the stack of plates is subjected to a weight of \(100 \mathrm{~N}\) as shown in the figure. The coefficient of kinetic friction for steel on steel is 0.57 and for steel on brass is 0.44. Assuming that the entire weight comes into the stack and that the weight of the plates is negligible in comparison to the applied weight, the force required to move the middle plate (in \(\mathbf{N}\) ) is

146180 A block of mass \(5 \mathrm{~kg}\) is pulled by a force \(F\) as shown in the figure. If the coefficient of friction is 0.1 , then the force needed to accelerate the block to \(3 \mathrm{~m} / \mathrm{s}^{2}\) to the right is close to

146181 Sand is to be piled up on a horizontal ground in the form of a regular cone of a fixed base of radius \(R\). coefficient of static friction between the sand layers is \(\mu\). Maximum volume of the sand can be piled up in the form of cone without slipping on the ground is

146182 A block of mass \(2 \mathrm{~kg}\) is being pushed against a wall by a force \(F=90 \mathrm{~N}\) as shown in the figure. If the coefficient of friction is 0.25 . Then the magnitude of acceleration of the block is (Take,
\(\left.\mathbf{g}=\mathbf{1 0} \mathbf{~ m s}^{-\mathbf{2}}\right)\left(\sin 37^{\circ}=\frac{3}{5}\right)\)

146178 A child is on a merry-go-round, standing at a distance of \(2 \mathrm{~m}\) from the centre. The coefficient of static friction between the child and the surface of merry-go-round is 0.8 . At what maximum angular velocity can the merry-goround be rotated before the child slips? (Take, \(\mathbf{g}=\mathbf{1 0} \mathbf{~ m} / \mathbf{s}^{2}\) )

146179 A movable steel plate is placed between fixed steel and brass plates and the stack of plates is subjected to a weight of \(100 \mathrm{~N}\) as shown in the figure. The coefficient of kinetic friction for steel on steel is 0.57 and for steel on brass is 0.44. Assuming that the entire weight comes into the stack and that the weight of the plates is negligible in comparison to the applied weight, the force required to move the middle plate (in \(\mathbf{N}\) ) is

146180 A block of mass \(5 \mathrm{~kg}\) is pulled by a force \(F\) as shown in the figure. If the coefficient of friction is 0.1 , then the force needed to accelerate the block to \(3 \mathrm{~m} / \mathrm{s}^{2}\) to the right is close to

146181 Sand is to be piled up on a horizontal ground in the form of a regular cone of a fixed base of radius \(R\). coefficient of static friction between the sand layers is \(\mu\). Maximum volume of the sand can be piled up in the form of cone without slipping on the ground is

146182 A block of mass \(2 \mathrm{~kg}\) is being pushed against a wall by a force \(F=90 \mathrm{~N}\) as shown in the figure. If the coefficient of friction is 0.25 . Then the magnitude of acceleration of the block is (Take,
\(\left.\mathbf{g}=\mathbf{1 0} \mathbf{~ m s}^{-\mathbf{2}}\right)\left(\sin 37^{\circ}=\frac{3}{5}\right)\)