Chapter 9 – Rotation
A disc is rotating with an angular velocity ω0. A constant retarding torque is applied on it to stop the disc. The angular velocity becomes ω0/2 after n rotations. How many more rotations will it make before coming to rest ?
26
Nov
A disc is rotating with an angular velocity ω0. A constant retarding torque is applied on it to stop the disc. The angular velocity becomes ω0/2 after n rotations. How many more rotations will it make before coming to rest ? its. acceleration is then acceleration of its centre of mass is a . If [...]
A disc is rotating with an angular velocity ω0. A constant retarding torque is applied on it to stop the disc. The angular velocity becomes ω0/2 after n rotations. How many more rotations will it make before coming to rest ?
26
Nov
A disc is rotating with an angular velocity ω0. A constant retarding torque is applied on it to stop the disc. The angular velocity becomes ω0/2 after n rotations. How many more rotations will it make before coming to rest ? its. acceleration is then acceleration of its centre of mass is a . If [...]
A uniform stick of length l and mass m lies on a smooth table. It rotates with angular velocity ω about an axis perpendicular to the table and through one end of the stick. The angular momentum of the stick about the end is
26
Nov
A uniform stick of length l and mass m lies on a smooth table. It rotates with angular velocity ω about an axis perpendicular to the table and through one end of the stick. The angular momentum of the stick about the end is its. acceleration is then acceleration of its centre of mass is [...]
A particle moves in a circle with constant angular velocity ω about a point P on its circumference. The angular velocity of the particle about the centre C of the circle is
26
Nov
A particle moves in a circle with constant angular velocity ω about a point P on its circumference. The angular velocity of the particle about the centre C of the circle is A particle moves in a circle with constant angular velocity ω about a point P on its circumference. The angular velocity of the [...]
A uniform wire of length l and mass m is bent in the form of a rectangle ABCD with AB/BC=2 . The moment inertia of this frame about BC is :
26
Nov
A uniform wire of length l and mass m is bent in the form of a rectangle ABCD with AB/BC=2 . The moment inertia of this frame about BC is : A uniform wire of length l and mass m is bent in the form of a rectangle ABCD with AB/BC=2 . The moment inertia [...]
A uniform thin bar of mass 6 m and length 12L is bent to make a regular hexagon. Its moment of inertia about an axis passing through the centre of mass and perpendicular to the plane of a hexagon is
26
Nov
A uniform thin bar of mass 6 m and length 12L is bent to make a regular hexagon. Its moment of inertia about an axis passing through the centre of mass and perpendicular to the plane of a hexagon is A uniform thin bar of mass 6 m and length 12L is bent to make [...]
Two rings of the same radius and mass are placed such that their centres are at common point and their planes are perpendicular to each other. The moment of inertia of the system about an axis passing through the centre and perpendicular to the plane of one of the rings is
26
Nov
Two rings of the same radius and mass are placed such that their centres are at common point and their planes are perpendicular to each other. The moment of inertia of the system about an axis passing through the centre and perpendicular to the plane of one of the rings is
When a solid sphere rolls without slipping down an inclined plane making an angle θ with the horizontal, then acceleration of its centre of mass is a . If the same sphere slides without friction, its. acceleration is
26
Nov
When a solid sphere rolls without slipping down an inclined plane making an angle θ with the horizontal, then acceleration of its centre of mass is a . If the same sphere slides without friction, its. acceleration is its. acceleration is then acceleration of its centre of mass is a . If the same sphere [...]
A particle is moving parallel to x-axis as shown in the figure the angular velocity of the particle about the origin is
26
Nov
A particle is moving parallel to x-axis as shown in the figure the angular velocity of the particle about the origin is A particle is moving parallel to x-axis as shown in the figure the angular velocity of the particle about the origin is November 26, 2020 Category: Arihant Physics by D.C Pandey , Chapter [...]
A rigid body can be hinged about any point on the x-axis. When it is hinged such that the hinge is at a distance x the moment of inertia is given by I=2×2−12x+27 Then the x-coordinate of centre of mass is
26
Nov
A rigid body can be hinged about any point on the x-axis. When it is hinged such that the hinge is at a distance x the moment of inertia is given by I=2×2−12x+27 Then the x-coordinate of centre of mass is A pulley is hinged at the centre and a massless thread is wrapped around [...]