MOTION ON A HORIZONTAL ROUGH SURFACE
Laws of Motion

270329 Consider a 14-tyre truck, whose only rear 8 wheels are power driven (means only these 8 wheels can produce an acceleration). These 8 wheels are supporting approximately half of the load. If coefficient of friction between road and each tyre is 0.6 , then what could be the maximum attainable acceleration by this truck is

1 \(6 \mathrm{~ms}^{-2}\)
2 \(24 \mathrm{~ms}^{-2}\)
3 \(3 \mathrm{~ms}^{-2}\)
4 \(10 \mathrm{~ms}^{-2}\)
Laws of Motion

270330 A block is sliding on a rough horizontal surface. If the contact force on the block is\(\sqrt{2}\) times the frictional force, the coefficient of friction is

1 0.25
2 \(\frac{1}{\sqrt{2}}\)
3 \(\sqrt{2}\)
4 1
Laws of Motion

270331 A block is in limiting equilibrium on a rough horizontal surface. If the net contact force is\(\sqrt{3}\) times the normal force, the coefficient of static friction is

1 \(\sqrt{2}\)
2 \(\frac{1}{\sqrt{2}}\)
3 0.5
4 \(\frac{1}{\sqrt{3}}\)
Laws of Motion

270332 A block of mass\(2 \mathbf{k g}\) is placed on the surface of trolley of mass \(20 \mathrm{~kg}\) which is on a smooth surface. The coefficient of friction between the block and the surface of the trolley is 0.25 . If a horizontal force of \(\mathbf{2} \mathbf{N}\) acts on the block, the acceleration of the system in \(\mathrm{ms}^{-2}\) is \(\left(g=10 \mathrm{~ms}^{-2}\right)\)

1 1.8
2 1.0
3 0.9
4 0.09
Laws of Motion

270329 Consider a 14-tyre truck, whose only rear 8 wheels are power driven (means only these 8 wheels can produce an acceleration). These 8 wheels are supporting approximately half of the load. If coefficient of friction between road and each tyre is 0.6 , then what could be the maximum attainable acceleration by this truck is

1 \(6 \mathrm{~ms}^{-2}\)
2 \(24 \mathrm{~ms}^{-2}\)
3 \(3 \mathrm{~ms}^{-2}\)
4 \(10 \mathrm{~ms}^{-2}\)
Laws of Motion

270330 A block is sliding on a rough horizontal surface. If the contact force on the block is\(\sqrt{2}\) times the frictional force, the coefficient of friction is

1 0.25
2 \(\frac{1}{\sqrt{2}}\)
3 \(\sqrt{2}\)
4 1
Laws of Motion

270331 A block is in limiting equilibrium on a rough horizontal surface. If the net contact force is\(\sqrt{3}\) times the normal force, the coefficient of static friction is

1 \(\sqrt{2}\)
2 \(\frac{1}{\sqrt{2}}\)
3 0.5
4 \(\frac{1}{\sqrt{3}}\)
Laws of Motion

270332 A block of mass\(2 \mathbf{k g}\) is placed on the surface of trolley of mass \(20 \mathrm{~kg}\) which is on a smooth surface. The coefficient of friction between the block and the surface of the trolley is 0.25 . If a horizontal force of \(\mathbf{2} \mathbf{N}\) acts on the block, the acceleration of the system in \(\mathrm{ms}^{-2}\) is \(\left(g=10 \mathrm{~ms}^{-2}\right)\)

1 1.8
2 1.0
3 0.9
4 0.09
Laws of Motion

270329 Consider a 14-tyre truck, whose only rear 8 wheels are power driven (means only these 8 wheels can produce an acceleration). These 8 wheels are supporting approximately half of the load. If coefficient of friction between road and each tyre is 0.6 , then what could be the maximum attainable acceleration by this truck is

1 \(6 \mathrm{~ms}^{-2}\)
2 \(24 \mathrm{~ms}^{-2}\)
3 \(3 \mathrm{~ms}^{-2}\)
4 \(10 \mathrm{~ms}^{-2}\)
Laws of Motion

270330 A block is sliding on a rough horizontal surface. If the contact force on the block is\(\sqrt{2}\) times the frictional force, the coefficient of friction is

1 0.25
2 \(\frac{1}{\sqrt{2}}\)
3 \(\sqrt{2}\)
4 1
Laws of Motion

270331 A block is in limiting equilibrium on a rough horizontal surface. If the net contact force is\(\sqrt{3}\) times the normal force, the coefficient of static friction is

1 \(\sqrt{2}\)
2 \(\frac{1}{\sqrt{2}}\)
3 0.5
4 \(\frac{1}{\sqrt{3}}\)
Laws of Motion

270332 A block of mass\(2 \mathbf{k g}\) is placed on the surface of trolley of mass \(20 \mathrm{~kg}\) which is on a smooth surface. The coefficient of friction between the block and the surface of the trolley is 0.25 . If a horizontal force of \(\mathbf{2} \mathbf{N}\) acts on the block, the acceleration of the system in \(\mathrm{ms}^{-2}\) is \(\left(g=10 \mathrm{~ms}^{-2}\right)\)

1 1.8
2 1.0
3 0.9
4 0.09
Laws of Motion

270329 Consider a 14-tyre truck, whose only rear 8 wheels are power driven (means only these 8 wheels can produce an acceleration). These 8 wheels are supporting approximately half of the load. If coefficient of friction between road and each tyre is 0.6 , then what could be the maximum attainable acceleration by this truck is

1 \(6 \mathrm{~ms}^{-2}\)
2 \(24 \mathrm{~ms}^{-2}\)
3 \(3 \mathrm{~ms}^{-2}\)
4 \(10 \mathrm{~ms}^{-2}\)
Laws of Motion

270330 A block is sliding on a rough horizontal surface. If the contact force on the block is\(\sqrt{2}\) times the frictional force, the coefficient of friction is

1 0.25
2 \(\frac{1}{\sqrt{2}}\)
3 \(\sqrt{2}\)
4 1
Laws of Motion

270331 A block is in limiting equilibrium on a rough horizontal surface. If the net contact force is\(\sqrt{3}\) times the normal force, the coefficient of static friction is

1 \(\sqrt{2}\)
2 \(\frac{1}{\sqrt{2}}\)
3 0.5
4 \(\frac{1}{\sqrt{3}}\)
Laws of Motion

270332 A block of mass\(2 \mathbf{k g}\) is placed on the surface of trolley of mass \(20 \mathrm{~kg}\) which is on a smooth surface. The coefficient of friction between the block and the surface of the trolley is 0.25 . If a horizontal force of \(\mathbf{2} \mathbf{N}\) acts on the block, the acceleration of the system in \(\mathrm{ms}^{-2}\) is \(\left(g=10 \mathrm{~ms}^{-2}\right)\)

1 1.8
2 1.0
3 0.9
4 0.09