A particle of mass 20 g is released with an initial velocity 5m/s along the curve from the point A, as shown in the figure. The point A is at a height h from point B. The particle slides along the frictionless surface. When the particle reaches point B, its angular momentum about O will be :
(take g = 10 m/s2 )
8 kg-m2/s
3 kg-m2/s
2 kg-m2/s
6 kg-m2/s
Angular momentum -
- wherein
represent angular momentum of a moving particle about a point.
it can be calculated as
= Length of perpendicular on line of motion
= component of momentum along perpendicualar to
Appyl work energy theorem from A to B
Angular momentum about 0=L
8 kg-m2/s
Option 2)3 kg-m2/s
Option 3)2 kg-m2/s
Option 4)6 kg-m2/s
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