Friction, and Inclined Plane Friction Motion
LAWS OF MOTION (ADDITIONAL)

372081 A block \(B\) is pushed momentarily along a horizontal surface with an initial velocity \(V\). If \(\mu\) is the coefficient of sliding friction between \(B\) and the surface, block \(B\) will come to rest after a time

1 \(\frac{V}{g \mu}\)
2 \(\frac{g \mu}{V}\)
3 \(\frac{\mathrm{g}}{\mathrm{V}}\)
4 \(\frac{\mathrm{V}}{\mathrm{g}}\)
LAWS OF MOTION (ADDITIONAL)

372082 A block of mass \(10 \mathrm{~kg}\) is placed on a rough horizontal surface whose coefficient of friction is 0.5 . If a horizontal force of \(100 \mathrm{~N}\) is applied on it, then acceleration of block will be:

1 \(10 \mathrm{~m} / \mathrm{s}^{2}\)
2 \(5 \mathrm{~m} / \mathrm{s}^{2}\)
3 \(15 \mathrm{~m} / \mathrm{s}^{2}\)
4 \(0.5 \mathrm{~m} / \mathrm{s}^{2}\)
LAWS OF MOTION (ADDITIONAL)

372083 A block of mass \(2 \mathrm{~kg}\) rests on a plane inclined at an angle of \(30^{\circ}\) with the horizontal. The coefficient of friction between the block and surface is 0.7 . The frictional force acting on the block is :

1 \(11.9 \mathrm{~N}\)
2 \(25 \mathrm{~N}\)
3 \(50 \mathrm{~N}\)
4 \(22.9 \mathrm{~N}\)
LAWS OF MOTION (ADDITIONAL)

372084 A block of mass \(0.1 \mathrm{~kg}\) is held against a wall by applying a horizontal force of \(5 \mathrm{~N}\) on it. If \(\mu_{\mathrm{s}}\) is between the wall and the block is 0.5 , the magnitude of the frictional force acting on the block is

1 \(0.98 \mathrm{~N}\)
2 \(0.49 \mathrm{~N}\)
3 \(4.9 \mathrm{~N}\)
4 \(2.5 \mathrm{~N}\)
LAWS OF MOTION (ADDITIONAL)

372085 A uniform chain of length \(L\) is lying partly on a table, the remaining part hanging down from the edge of the table. If the coefficient of friction between the chain and the table is 0.5 , what is the minimum length of the chain that should lie on the table, to prevent the chain from slipping down to the ground?

1 \(\mathrm{L} / 3\)
2 \(\mathrm{L} / 2\)
3 \(2 \mathrm{~L} / 3\)
4 \(3 \mathrm{~L} / 4\)
LAWS OF MOTION (ADDITIONAL)

372081 A block \(B\) is pushed momentarily along a horizontal surface with an initial velocity \(V\). If \(\mu\) is the coefficient of sliding friction between \(B\) and the surface, block \(B\) will come to rest after a time

1 \(\frac{V}{g \mu}\)
2 \(\frac{g \mu}{V}\)
3 \(\frac{\mathrm{g}}{\mathrm{V}}\)
4 \(\frac{\mathrm{V}}{\mathrm{g}}\)
LAWS OF MOTION (ADDITIONAL)

372082 A block of mass \(10 \mathrm{~kg}\) is placed on a rough horizontal surface whose coefficient of friction is 0.5 . If a horizontal force of \(100 \mathrm{~N}\) is applied on it, then acceleration of block will be:

1 \(10 \mathrm{~m} / \mathrm{s}^{2}\)
2 \(5 \mathrm{~m} / \mathrm{s}^{2}\)
3 \(15 \mathrm{~m} / \mathrm{s}^{2}\)
4 \(0.5 \mathrm{~m} / \mathrm{s}^{2}\)
LAWS OF MOTION (ADDITIONAL)

372083 A block of mass \(2 \mathrm{~kg}\) rests on a plane inclined at an angle of \(30^{\circ}\) with the horizontal. The coefficient of friction between the block and surface is 0.7 . The frictional force acting on the block is :

1 \(11.9 \mathrm{~N}\)
2 \(25 \mathrm{~N}\)
3 \(50 \mathrm{~N}\)
4 \(22.9 \mathrm{~N}\)
LAWS OF MOTION (ADDITIONAL)

372084 A block of mass \(0.1 \mathrm{~kg}\) is held against a wall by applying a horizontal force of \(5 \mathrm{~N}\) on it. If \(\mu_{\mathrm{s}}\) is between the wall and the block is 0.5 , the magnitude of the frictional force acting on the block is

1 \(0.98 \mathrm{~N}\)
2 \(0.49 \mathrm{~N}\)
3 \(4.9 \mathrm{~N}\)
4 \(2.5 \mathrm{~N}\)
LAWS OF MOTION (ADDITIONAL)

372085 A uniform chain of length \(L\) is lying partly on a table, the remaining part hanging down from the edge of the table. If the coefficient of friction between the chain and the table is 0.5 , what is the minimum length of the chain that should lie on the table, to prevent the chain from slipping down to the ground?

1 \(\mathrm{L} / 3\)
2 \(\mathrm{L} / 2\)
3 \(2 \mathrm{~L} / 3\)
4 \(3 \mathrm{~L} / 4\)
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LAWS OF MOTION (ADDITIONAL)

372081 A block \(B\) is pushed momentarily along a horizontal surface with an initial velocity \(V\). If \(\mu\) is the coefficient of sliding friction between \(B\) and the surface, block \(B\) will come to rest after a time

1 \(\frac{V}{g \mu}\)
2 \(\frac{g \mu}{V}\)
3 \(\frac{\mathrm{g}}{\mathrm{V}}\)
4 \(\frac{\mathrm{V}}{\mathrm{g}}\)
LAWS OF MOTION (ADDITIONAL)

372082 A block of mass \(10 \mathrm{~kg}\) is placed on a rough horizontal surface whose coefficient of friction is 0.5 . If a horizontal force of \(100 \mathrm{~N}\) is applied on it, then acceleration of block will be:

1 \(10 \mathrm{~m} / \mathrm{s}^{2}\)
2 \(5 \mathrm{~m} / \mathrm{s}^{2}\)
3 \(15 \mathrm{~m} / \mathrm{s}^{2}\)
4 \(0.5 \mathrm{~m} / \mathrm{s}^{2}\)
LAWS OF MOTION (ADDITIONAL)

372083 A block of mass \(2 \mathrm{~kg}\) rests on a plane inclined at an angle of \(30^{\circ}\) with the horizontal. The coefficient of friction between the block and surface is 0.7 . The frictional force acting on the block is :

1 \(11.9 \mathrm{~N}\)
2 \(25 \mathrm{~N}\)
3 \(50 \mathrm{~N}\)
4 \(22.9 \mathrm{~N}\)
LAWS OF MOTION (ADDITIONAL)

372084 A block of mass \(0.1 \mathrm{~kg}\) is held against a wall by applying a horizontal force of \(5 \mathrm{~N}\) on it. If \(\mu_{\mathrm{s}}\) is between the wall and the block is 0.5 , the magnitude of the frictional force acting on the block is

1 \(0.98 \mathrm{~N}\)
2 \(0.49 \mathrm{~N}\)
3 \(4.9 \mathrm{~N}\)
4 \(2.5 \mathrm{~N}\)
LAWS OF MOTION (ADDITIONAL)

372085 A uniform chain of length \(L\) is lying partly on a table, the remaining part hanging down from the edge of the table. If the coefficient of friction between the chain and the table is 0.5 , what is the minimum length of the chain that should lie on the table, to prevent the chain from slipping down to the ground?

1 \(\mathrm{L} / 3\)
2 \(\mathrm{L} / 2\)
3 \(2 \mathrm{~L} / 3\)
4 \(3 \mathrm{~L} / 4\)
LAWS OF MOTION (ADDITIONAL)

372081 A block \(B\) is pushed momentarily along a horizontal surface with an initial velocity \(V\). If \(\mu\) is the coefficient of sliding friction between \(B\) and the surface, block \(B\) will come to rest after a time

1 \(\frac{V}{g \mu}\)
2 \(\frac{g \mu}{V}\)
3 \(\frac{\mathrm{g}}{\mathrm{V}}\)
4 \(\frac{\mathrm{V}}{\mathrm{g}}\)
LAWS OF MOTION (ADDITIONAL)

372082 A block of mass \(10 \mathrm{~kg}\) is placed on a rough horizontal surface whose coefficient of friction is 0.5 . If a horizontal force of \(100 \mathrm{~N}\) is applied on it, then acceleration of block will be:

1 \(10 \mathrm{~m} / \mathrm{s}^{2}\)
2 \(5 \mathrm{~m} / \mathrm{s}^{2}\)
3 \(15 \mathrm{~m} / \mathrm{s}^{2}\)
4 \(0.5 \mathrm{~m} / \mathrm{s}^{2}\)
LAWS OF MOTION (ADDITIONAL)

372083 A block of mass \(2 \mathrm{~kg}\) rests on a plane inclined at an angle of \(30^{\circ}\) with the horizontal. The coefficient of friction between the block and surface is 0.7 . The frictional force acting on the block is :

1 \(11.9 \mathrm{~N}\)
2 \(25 \mathrm{~N}\)
3 \(50 \mathrm{~N}\)
4 \(22.9 \mathrm{~N}\)
LAWS OF MOTION (ADDITIONAL)

372084 A block of mass \(0.1 \mathrm{~kg}\) is held against a wall by applying a horizontal force of \(5 \mathrm{~N}\) on it. If \(\mu_{\mathrm{s}}\) is between the wall and the block is 0.5 , the magnitude of the frictional force acting on the block is

1 \(0.98 \mathrm{~N}\)
2 \(0.49 \mathrm{~N}\)
3 \(4.9 \mathrm{~N}\)
4 \(2.5 \mathrm{~N}\)
LAWS OF MOTION (ADDITIONAL)

372085 A uniform chain of length \(L\) is lying partly on a table, the remaining part hanging down from the edge of the table. If the coefficient of friction between the chain and the table is 0.5 , what is the minimum length of the chain that should lie on the table, to prevent the chain from slipping down to the ground?

1 \(\mathrm{L} / 3\)
2 \(\mathrm{L} / 2\)
3 \(2 \mathrm{~L} / 3\)
4 \(3 \mathrm{~L} / 4\)
LAWS OF MOTION (ADDITIONAL)

372081 A block \(B\) is pushed momentarily along a horizontal surface with an initial velocity \(V\). If \(\mu\) is the coefficient of sliding friction between \(B\) and the surface, block \(B\) will come to rest after a time

1 \(\frac{V}{g \mu}\)
2 \(\frac{g \mu}{V}\)
3 \(\frac{\mathrm{g}}{\mathrm{V}}\)
4 \(\frac{\mathrm{V}}{\mathrm{g}}\)
LAWS OF MOTION (ADDITIONAL)

372082 A block of mass \(10 \mathrm{~kg}\) is placed on a rough horizontal surface whose coefficient of friction is 0.5 . If a horizontal force of \(100 \mathrm{~N}\) is applied on it, then acceleration of block will be:

1 \(10 \mathrm{~m} / \mathrm{s}^{2}\)
2 \(5 \mathrm{~m} / \mathrm{s}^{2}\)
3 \(15 \mathrm{~m} / \mathrm{s}^{2}\)
4 \(0.5 \mathrm{~m} / \mathrm{s}^{2}\)
LAWS OF MOTION (ADDITIONAL)

372083 A block of mass \(2 \mathrm{~kg}\) rests on a plane inclined at an angle of \(30^{\circ}\) with the horizontal. The coefficient of friction between the block and surface is 0.7 . The frictional force acting on the block is :

1 \(11.9 \mathrm{~N}\)
2 \(25 \mathrm{~N}\)
3 \(50 \mathrm{~N}\)
4 \(22.9 \mathrm{~N}\)
LAWS OF MOTION (ADDITIONAL)

372084 A block of mass \(0.1 \mathrm{~kg}\) is held against a wall by applying a horizontal force of \(5 \mathrm{~N}\) on it. If \(\mu_{\mathrm{s}}\) is between the wall and the block is 0.5 , the magnitude of the frictional force acting on the block is

1 \(0.98 \mathrm{~N}\)
2 \(0.49 \mathrm{~N}\)
3 \(4.9 \mathrm{~N}\)
4 \(2.5 \mathrm{~N}\)
LAWS OF MOTION (ADDITIONAL)

372085 A uniform chain of length \(L\) is lying partly on a table, the remaining part hanging down from the edge of the table. If the coefficient of friction between the chain and the table is 0.5 , what is the minimum length of the chain that should lie on the table, to prevent the chain from slipping down to the ground?

1 \(\mathrm{L} / 3\)
2 \(\mathrm{L} / 2\)
3 \(2 \mathrm{~L} / 3\)
4 \(3 \mathrm{~L} / 4\)