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Angular Momentum is considered one of the most asked concept.
39 Questions around this concept.
A particle of mass
A particle of mass 2 kg is on a smooth horizontal table and moves in a circular path of radius 0.6 m. The height of the table from the ground is 0.8 m. If the angular speed of the particle is 12 rad s-1, the magnitude (in kg m2s-1) of its angular momentum about a point on the ground right under the centre of the circle is :
Angular momentum of a single particle moving with constant speed along circular path :
The position vector of 1 kg object is
A small particle of mass
the angular momentum of the particle is
where
When a dancer folds her arms she spins faster on ice. This is due to
A solid homogeneous sphere is moving on a rough horizontal surface, partly rolling and partly sliding. During this kind of motion of this sphere:
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The term moment of momentum is called
If
The moment of linear momentum of a body with respect to any axis of rotation is known as angular momentum. If P is the linear momentum of a particle and its position vector from the point of rotation is r then angular momentum is given by the vector product of linear momentum and position vector.
- Its direction is always perpendicular to the plane containing vector r and P and with the help of right hand screw rule we can find it.
Its direction will be perpendicular to the plane of rotation and along the axis of rotation
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- SI Unit- Joule-sec or
- Dimension-
- In case of circular motion
As
So in vector form
- The net angular momentum of a system consists of
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