A force is acting at a point . The value of α for which angular momentum about origin is conserved is:
2
zero
1
-1
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.
L=
Option 1)
2
This option is incorrect.
Option 2)
zero
This option is incorrect.
Option 3)
1
This option is correct.
Option 4)
-1
This option is incorrect.