366268
As shown in the figure, a bob of mass m is tied by massless string whose other end portion is wound on a fly wheel (disc) of radius r and mass m. When released from rest the bob starts falling vertically. When it has covered a distance of h, the angular speed of the wheel will be
366269 The moment of inertia of a body about a given axis is \(1.2\;kg - {m^2}\). Initially, the body is at rest. In order to produce a rotational kinetic energy of \(1500\;J\), and angular acceleration of \(25\,rad{s^{ - 2}}\) must be applied about that axis for a duration of
366271
Which of these statements(s) is/are incorrect?
I.
Moment of force is a vector quantity.
II.
Angular momentum is a vector quantity.
III.
Angular momentum of a particle moving in a straight line is always constant with respect to fixed point.
IV.
\(K . E_{\text {rot }}=L \omega\)
366268
As shown in the figure, a bob of mass m is tied by massless string whose other end portion is wound on a fly wheel (disc) of radius r and mass m. When released from rest the bob starts falling vertically. When it has covered a distance of h, the angular speed of the wheel will be
366269 The moment of inertia of a body about a given axis is \(1.2\;kg - {m^2}\). Initially, the body is at rest. In order to produce a rotational kinetic energy of \(1500\;J\), and angular acceleration of \(25\,rad{s^{ - 2}}\) must be applied about that axis for a duration of
366271
Which of these statements(s) is/are incorrect?
I.
Moment of force is a vector quantity.
II.
Angular momentum is a vector quantity.
III.
Angular momentum of a particle moving in a straight line is always constant with respect to fixed point.
IV.
\(K . E_{\text {rot }}=L \omega\)
366268
As shown in the figure, a bob of mass m is tied by massless string whose other end portion is wound on a fly wheel (disc) of radius r and mass m. When released from rest the bob starts falling vertically. When it has covered a distance of h, the angular speed of the wheel will be
366269 The moment of inertia of a body about a given axis is \(1.2\;kg - {m^2}\). Initially, the body is at rest. In order to produce a rotational kinetic energy of \(1500\;J\), and angular acceleration of \(25\,rad{s^{ - 2}}\) must be applied about that axis for a duration of
366271
Which of these statements(s) is/are incorrect?
I.
Moment of force is a vector quantity.
II.
Angular momentum is a vector quantity.
III.
Angular momentum of a particle moving in a straight line is always constant with respect to fixed point.
IV.
\(K . E_{\text {rot }}=L \omega\)
366268
As shown in the figure, a bob of mass m is tied by massless string whose other end portion is wound on a fly wheel (disc) of radius r and mass m. When released from rest the bob starts falling vertically. When it has covered a distance of h, the angular speed of the wheel will be
366269 The moment of inertia of a body about a given axis is \(1.2\;kg - {m^2}\). Initially, the body is at rest. In order to produce a rotational kinetic energy of \(1500\;J\), and angular acceleration of \(25\,rad{s^{ - 2}}\) must be applied about that axis for a duration of
366271
Which of these statements(s) is/are incorrect?
I.
Moment of force is a vector quantity.
II.
Angular momentum is a vector quantity.
III.
Angular momentum of a particle moving in a straight line is always constant with respect to fixed point.
IV.
\(K . E_{\text {rot }}=L \omega\)