06. Rolling Motion
Rotational Motion

150404 A solid cylinder is released from rest from the top of an inclined plane of inclination \(30^{\circ}\) and length \(60 \mathrm{~cm}\). If the cylinder rolls without slipping, then the speed when it reaches the bottom is

1 \(1.5 \mathrm{~m} / \mathrm{s}\)
2 \(2.0 \mathrm{~m} / \mathrm{s}\)
3 \(3.0 \mathrm{~m} / \mathrm{s}\)
4 \(6.0 \mathrm{~m} / \mathrm{s}\)
Rotational Motion

150405 A solid sphere of mass \(2 \mathrm{~kg}\) rolls on a smooth horizontal surface at \(10 \mathrm{~m} / \mathrm{s}\). It then rolls up a smooth inclined plane of inclination \(30^{\circ}\) with the horizontal. The height attained by the sphere before it stops is [take \(g=\mathbf{1 0} \mathbf{~ m} / \mathrm{s}^{2}\) ]

1 \(70 \mathrm{~cm}\)
2 \(701 \mathrm{~cm}\)
3 \(7.0 \mathrm{~m}\)
4 \(70 \mathrm{~m}\)
Rotational Motion

150406 A solid sphere and a solid cylinder, each of mass \(M\) and radius \(R\) are rolling with a linear speed on a flat surface without slipping. Let \(L_{1}\) be magnitude of the angular momentum of the sphere with respect to a fixed point along the path of the sphere. Likewise \(L_{2}\) be the magnitude of angular momentum of the cylinder with respect to the same fixed point along its path. The ratio \(\frac{L_{1}}{L_{2}}\) is

1 \(\frac{14}{15}\)
2 \(\frac{4}{5}\)
3 \(\frac{2}{5}\)
4 \(\frac{7}{15}\)
Rotational Motion

150407 A solid sphere of mass \(2 \mathrm{~kg}\) rolls on a smooth horizontal surface at \(10 \mathrm{~m} / \mathrm{s}\) and then rolls up a smooth inclined plane of inclination \(30^{\circ}\) with the horizontal. The maximum height reached by the sphere is \(\left(g=9.8 \mathrm{~m} / \mathrm{s}^{2}\right)\)

1 \(10 \mathrm{~m}\)
2 \(4.9 \mathrm{~m}\)
3 \(14.2 \mathrm{~m}\)
4 \(7.1 \mathrm{~m}\)
Rotational Motion

150408 A solid cylinder and a hollow cylinder both of the same mass and same external diameter are released from the same height at the same time on an inclined plane. Both roll down without slipping. Which one will reach the bottom first?

1 Solid cylinder
2 Both together
3 One with higher density
4 Hollow cylinder
Rotational Motion

150404 A solid cylinder is released from rest from the top of an inclined plane of inclination \(30^{\circ}\) and length \(60 \mathrm{~cm}\). If the cylinder rolls without slipping, then the speed when it reaches the bottom is

1 \(1.5 \mathrm{~m} / \mathrm{s}\)
2 \(2.0 \mathrm{~m} / \mathrm{s}\)
3 \(3.0 \mathrm{~m} / \mathrm{s}\)
4 \(6.0 \mathrm{~m} / \mathrm{s}\)
Rotational Motion

150405 A solid sphere of mass \(2 \mathrm{~kg}\) rolls on a smooth horizontal surface at \(10 \mathrm{~m} / \mathrm{s}\). It then rolls up a smooth inclined plane of inclination \(30^{\circ}\) with the horizontal. The height attained by the sphere before it stops is [take \(g=\mathbf{1 0} \mathbf{~ m} / \mathrm{s}^{2}\) ]

1 \(70 \mathrm{~cm}\)
2 \(701 \mathrm{~cm}\)
3 \(7.0 \mathrm{~m}\)
4 \(70 \mathrm{~m}\)
Rotational Motion

150406 A solid sphere and a solid cylinder, each of mass \(M\) and radius \(R\) are rolling with a linear speed on a flat surface without slipping. Let \(L_{1}\) be magnitude of the angular momentum of the sphere with respect to a fixed point along the path of the sphere. Likewise \(L_{2}\) be the magnitude of angular momentum of the cylinder with respect to the same fixed point along its path. The ratio \(\frac{L_{1}}{L_{2}}\) is

1 \(\frac{14}{15}\)
2 \(\frac{4}{5}\)
3 \(\frac{2}{5}\)
4 \(\frac{7}{15}\)
Rotational Motion

150407 A solid sphere of mass \(2 \mathrm{~kg}\) rolls on a smooth horizontal surface at \(10 \mathrm{~m} / \mathrm{s}\) and then rolls up a smooth inclined plane of inclination \(30^{\circ}\) with the horizontal. The maximum height reached by the sphere is \(\left(g=9.8 \mathrm{~m} / \mathrm{s}^{2}\right)\)

1 \(10 \mathrm{~m}\)
2 \(4.9 \mathrm{~m}\)
3 \(14.2 \mathrm{~m}\)
4 \(7.1 \mathrm{~m}\)
Rotational Motion

150408 A solid cylinder and a hollow cylinder both of the same mass and same external diameter are released from the same height at the same time on an inclined plane. Both roll down without slipping. Which one will reach the bottom first?

1 Solid cylinder
2 Both together
3 One with higher density
4 Hollow cylinder
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Rotational Motion

150404 A solid cylinder is released from rest from the top of an inclined plane of inclination \(30^{\circ}\) and length \(60 \mathrm{~cm}\). If the cylinder rolls without slipping, then the speed when it reaches the bottom is

1 \(1.5 \mathrm{~m} / \mathrm{s}\)
2 \(2.0 \mathrm{~m} / \mathrm{s}\)
3 \(3.0 \mathrm{~m} / \mathrm{s}\)
4 \(6.0 \mathrm{~m} / \mathrm{s}\)
Rotational Motion

150405 A solid sphere of mass \(2 \mathrm{~kg}\) rolls on a smooth horizontal surface at \(10 \mathrm{~m} / \mathrm{s}\). It then rolls up a smooth inclined plane of inclination \(30^{\circ}\) with the horizontal. The height attained by the sphere before it stops is [take \(g=\mathbf{1 0} \mathbf{~ m} / \mathrm{s}^{2}\) ]

1 \(70 \mathrm{~cm}\)
2 \(701 \mathrm{~cm}\)
3 \(7.0 \mathrm{~m}\)
4 \(70 \mathrm{~m}\)
Rotational Motion

150406 A solid sphere and a solid cylinder, each of mass \(M\) and radius \(R\) are rolling with a linear speed on a flat surface without slipping. Let \(L_{1}\) be magnitude of the angular momentum of the sphere with respect to a fixed point along the path of the sphere. Likewise \(L_{2}\) be the magnitude of angular momentum of the cylinder with respect to the same fixed point along its path. The ratio \(\frac{L_{1}}{L_{2}}\) is

1 \(\frac{14}{15}\)
2 \(\frac{4}{5}\)
3 \(\frac{2}{5}\)
4 \(\frac{7}{15}\)
Rotational Motion

150407 A solid sphere of mass \(2 \mathrm{~kg}\) rolls on a smooth horizontal surface at \(10 \mathrm{~m} / \mathrm{s}\) and then rolls up a smooth inclined plane of inclination \(30^{\circ}\) with the horizontal. The maximum height reached by the sphere is \(\left(g=9.8 \mathrm{~m} / \mathrm{s}^{2}\right)\)

1 \(10 \mathrm{~m}\)
2 \(4.9 \mathrm{~m}\)
3 \(14.2 \mathrm{~m}\)
4 \(7.1 \mathrm{~m}\)
Rotational Motion

150408 A solid cylinder and a hollow cylinder both of the same mass and same external diameter are released from the same height at the same time on an inclined plane. Both roll down without slipping. Which one will reach the bottom first?

1 Solid cylinder
2 Both together
3 One with higher density
4 Hollow cylinder
Rotational Motion

150404 A solid cylinder is released from rest from the top of an inclined plane of inclination \(30^{\circ}\) and length \(60 \mathrm{~cm}\). If the cylinder rolls without slipping, then the speed when it reaches the bottom is

1 \(1.5 \mathrm{~m} / \mathrm{s}\)
2 \(2.0 \mathrm{~m} / \mathrm{s}\)
3 \(3.0 \mathrm{~m} / \mathrm{s}\)
4 \(6.0 \mathrm{~m} / \mathrm{s}\)
Rotational Motion

150405 A solid sphere of mass \(2 \mathrm{~kg}\) rolls on a smooth horizontal surface at \(10 \mathrm{~m} / \mathrm{s}\). It then rolls up a smooth inclined plane of inclination \(30^{\circ}\) with the horizontal. The height attained by the sphere before it stops is [take \(g=\mathbf{1 0} \mathbf{~ m} / \mathrm{s}^{2}\) ]

1 \(70 \mathrm{~cm}\)
2 \(701 \mathrm{~cm}\)
3 \(7.0 \mathrm{~m}\)
4 \(70 \mathrm{~m}\)
Rotational Motion

150406 A solid sphere and a solid cylinder, each of mass \(M\) and radius \(R\) are rolling with a linear speed on a flat surface without slipping. Let \(L_{1}\) be magnitude of the angular momentum of the sphere with respect to a fixed point along the path of the sphere. Likewise \(L_{2}\) be the magnitude of angular momentum of the cylinder with respect to the same fixed point along its path. The ratio \(\frac{L_{1}}{L_{2}}\) is

1 \(\frac{14}{15}\)
2 \(\frac{4}{5}\)
3 \(\frac{2}{5}\)
4 \(\frac{7}{15}\)
Rotational Motion

150407 A solid sphere of mass \(2 \mathrm{~kg}\) rolls on a smooth horizontal surface at \(10 \mathrm{~m} / \mathrm{s}\) and then rolls up a smooth inclined plane of inclination \(30^{\circ}\) with the horizontal. The maximum height reached by the sphere is \(\left(g=9.8 \mathrm{~m} / \mathrm{s}^{2}\right)\)

1 \(10 \mathrm{~m}\)
2 \(4.9 \mathrm{~m}\)
3 \(14.2 \mathrm{~m}\)
4 \(7.1 \mathrm{~m}\)
Rotational Motion

150408 A solid cylinder and a hollow cylinder both of the same mass and same external diameter are released from the same height at the same time on an inclined plane. Both roll down without slipping. Which one will reach the bottom first?

1 Solid cylinder
2 Both together
3 One with higher density
4 Hollow cylinder
Rotational Motion

150404 A solid cylinder is released from rest from the top of an inclined plane of inclination \(30^{\circ}\) and length \(60 \mathrm{~cm}\). If the cylinder rolls without slipping, then the speed when it reaches the bottom is

1 \(1.5 \mathrm{~m} / \mathrm{s}\)
2 \(2.0 \mathrm{~m} / \mathrm{s}\)
3 \(3.0 \mathrm{~m} / \mathrm{s}\)
4 \(6.0 \mathrm{~m} / \mathrm{s}\)
Rotational Motion

150405 A solid sphere of mass \(2 \mathrm{~kg}\) rolls on a smooth horizontal surface at \(10 \mathrm{~m} / \mathrm{s}\). It then rolls up a smooth inclined plane of inclination \(30^{\circ}\) with the horizontal. The height attained by the sphere before it stops is [take \(g=\mathbf{1 0} \mathbf{~ m} / \mathrm{s}^{2}\) ]

1 \(70 \mathrm{~cm}\)
2 \(701 \mathrm{~cm}\)
3 \(7.0 \mathrm{~m}\)
4 \(70 \mathrm{~m}\)
Rotational Motion

150406 A solid sphere and a solid cylinder, each of mass \(M\) and radius \(R\) are rolling with a linear speed on a flat surface without slipping. Let \(L_{1}\) be magnitude of the angular momentum of the sphere with respect to a fixed point along the path of the sphere. Likewise \(L_{2}\) be the magnitude of angular momentum of the cylinder with respect to the same fixed point along its path. The ratio \(\frac{L_{1}}{L_{2}}\) is

1 \(\frac{14}{15}\)
2 \(\frac{4}{5}\)
3 \(\frac{2}{5}\)
4 \(\frac{7}{15}\)
Rotational Motion

150407 A solid sphere of mass \(2 \mathrm{~kg}\) rolls on a smooth horizontal surface at \(10 \mathrm{~m} / \mathrm{s}\) and then rolls up a smooth inclined plane of inclination \(30^{\circ}\) with the horizontal. The maximum height reached by the sphere is \(\left(g=9.8 \mathrm{~m} / \mathrm{s}^{2}\right)\)

1 \(10 \mathrm{~m}\)
2 \(4.9 \mathrm{~m}\)
3 \(14.2 \mathrm{~m}\)
4 \(7.1 \mathrm{~m}\)
Rotational Motion

150408 A solid cylinder and a hollow cylinder both of the same mass and same external diameter are released from the same height at the same time on an inclined plane. Both roll down without slipping. Which one will reach the bottom first?

1 Solid cylinder
2 Both together
3 One with higher density
4 Hollow cylinder