Rotational MotionMedium
Question
A particle falls freely near the surface of the earth. Consider a fixed point O (not vertically below the particle) on the ground
Options
A.Angular momentum of the particle about O is increasing
B.Torque of the gravitational force on the particle about O is decreasing
C.The moment of inertia of the particle about O is decreasing
D.The angular velocity of the particle about O is increasing
Solution
Angular momentum = 
As
increases when falls down then 
also and so angular momentum is also increases. As particle falls down the length of position vector decrease so MI about ′O′ also decreases.
As
increases when falls down then also and so angular momentum is also increases. As particle falls down the length of position vector decrease so MI about ′O′ also decreases.Create a free account to view solution
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