1 Rotational Motion
If L,M and p denotes the angular momentum, mass, and linear momentum respectively of a particle. Which of the following can represent the kinetic energy of the particle moving in a circle of radius R?
1) L2 /2M 2) p2 / M 3) L2/ 2MR2 4) 1/ 2Mp
SOLUTION : KE=(M×v2)/2 L=M×v×R p=M×v K.E=p2/(2×M) K.E=L2/(2×M×R2)
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