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Q. A body is projected from the ground with some angle to the horizontal. What happens to the angular momentum about the initial position in this motion?

AIIMSAIIMS 2000System of Particles and Rotational Motion

Solution:

About point O, the angular momentum of the projectile is in clockwise sense. The torque on the projectile about point O (moment of mg) is also in clockwise sense. Hence the angular momentum increases.

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