Advertisements
Advertisements
प्रश्न
The angular momentum of a system of particles is conserved ______
विकल्प
When no external force acts upon the system
When no external torque acts upon the system
When no external impulse acts upon the system
When the axis of rotation remains the same
उत्तर
The angular momentum of a system of particles is conserved When no external torque acts upon the system.
APPEARS IN
संबंधित प्रश्न
State and prove: Law of conservation of angular momentum.
Answer in brief:
Derive an expression which relates angular momentum with the angular velocity of a rigid body.
Obtain an expression for the angular momentum of a body rotating with uniform angular velocity.
A thin circular ring of mass M and radius r is rotating about its axis with a constant angular velocity `omega`. Two objects of mass m are attached gently to the opposite ends of diameter of the ring. The wheel will now rotate with angular velocity ______.
If the radius of earth contracts to half of its value today, (the mass remaining unchanged), then the duration of the day will be ____________.
A ceiling fan having a moment of inertia 2 kg-m2 attains its maximum frequency of 60 rpm in ‘2π’ seconds. Calculate its power rating.
Which physical quantity of an atomic electron has the dimensions same as that of h?
