149922 A constant torque of \(1000 \mathrm{~N}-\mathrm{m}\) turns a wheel of moment of inertia \(200 \mathrm{~kg}-\mathrm{m}^{2}\) about an axis through its centre. Its angular velocity after 3 second is, in \(\mathrm{rad} / \mathrm{s}\) :

149923 The angular momentum of a particle with respect to the origin will not be zero, if

149924 A particle is moving in an elliptical orbit as shown in figure. If \(\vec{p}, \vec{L}\) and \(\vec{r}\) denote the linear momentum, angular momentum and position vector of the particle (from focus \(O\)respectively at a point at \(A\), then the direction of \(\vec{\alpha}=\overrightarrow{\mathbf{p}} \times \overrightarrow{\mathbf{L}}\) is along.

149925 If the radius of a spherical object, rotating about its diameter with a time period of 2 second, is reduced to half its actual value, keeping its mass unchanged, its time period becomes (assuming zero external torque)

149922 A constant torque of \(1000 \mathrm{~N}-\mathrm{m}\) turns a wheel of moment of inertia \(200 \mathrm{~kg}-\mathrm{m}^{2}\) about an axis through its centre. Its angular velocity after 3 second is, in \(\mathrm{rad} / \mathrm{s}\) :

149923 The angular momentum of a particle with respect to the origin will not be zero, if

149924 A particle is moving in an elliptical orbit as shown in figure. If \(\vec{p}, \vec{L}\) and \(\vec{r}\) denote the linear momentum, angular momentum and position vector of the particle (from focus \(O\)respectively at a point at \(A\), then the direction of \(\vec{\alpha}=\overrightarrow{\mathbf{p}} \times \overrightarrow{\mathbf{L}}\) is along.

149925 If the radius of a spherical object, rotating about its diameter with a time period of 2 second, is reduced to half its actual value, keeping its mass unchanged, its time period becomes (assuming zero external torque)

149922 A constant torque of \(1000 \mathrm{~N}-\mathrm{m}\) turns a wheel of moment of inertia \(200 \mathrm{~kg}-\mathrm{m}^{2}\) about an axis through its centre. Its angular velocity after 3 second is, in \(\mathrm{rad} / \mathrm{s}\) :

149923 The angular momentum of a particle with respect to the origin will not be zero, if

149924 A particle is moving in an elliptical orbit as shown in figure. If \(\vec{p}, \vec{L}\) and \(\vec{r}\) denote the linear momentum, angular momentum and position vector of the particle (from focus \(O\)respectively at a point at \(A\), then the direction of \(\vec{\alpha}=\overrightarrow{\mathbf{p}} \times \overrightarrow{\mathbf{L}}\) is along.

149925 If the radius of a spherical object, rotating about its diameter with a time period of 2 second, is reduced to half its actual value, keeping its mass unchanged, its time period becomes (assuming zero external torque)

149922 A constant torque of \(1000 \mathrm{~N}-\mathrm{m}\) turns a wheel of moment of inertia \(200 \mathrm{~kg}-\mathrm{m}^{2}\) about an axis through its centre. Its angular velocity after 3 second is, in \(\mathrm{rad} / \mathrm{s}\) :

149923 The angular momentum of a particle with respect to the origin will not be zero, if

149924 A particle is moving in an elliptical orbit as shown in figure. If \(\vec{p}, \vec{L}\) and \(\vec{r}\) denote the linear momentum, angular momentum and position vector of the particle (from focus \(O\)respectively at a point at \(A\), then the direction of \(\vec{\alpha}=\overrightarrow{\mathbf{p}} \times \overrightarrow{\mathbf{L}}\) is along.

149925 If the radius of a spherical object, rotating about its diameter with a time period of 2 second, is reduced to half its actual value, keeping its mass unchanged, its time period becomes (assuming zero external torque)