Agular momentum of the particle rotating with a central force is constant due to
Option 1)
Constant torque |
Option 2)
constant force |
Option 3)
constant linear momentum |
Option 4)
zero torque |
Torque -
- wherein
This can be calculated by using either
= perpendicular distance from origin to the line of force.
= component of force perpendicular to line joining force.
Central forces passes through axis of rotation so torque is zero.
If no external torque is acting on a particle, the angular momentum of a particle is constant.
Option 1)
Constant torque
It is an incorrect option.
Option 2)
constant force
It is an incorrect option.
Option 3)
constant linear momentum
It is an incorrect option
Option 4)
zero torque
It is the correct option.
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