Rotational MotionHard
Question
A thin uniform rod of mass m and length l is free to rotate about its upper end. When it is at rest, it receives an impulse J at its lowest point, normal to its length. Immediately after impact
Options
A.the angular momentum of the rod is Jl.
B.the angular velocity of the rod is 
C.the kinetic energy of the rod is 
D.the kinetic energy of the rod is 
Solution
By impulse momentum theorem J = 
KE of rod =
Linear velocity of midpoints =
KE of rod =
Linear velocity of midpoints =
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