Question

If L, m denote the angular momentum and mass of a particle and P its linear momentum. Which of the following can represent the kinetic energy of the particle moving in a circle of radius R ?

• A. $\frac { \mathrm { L } ^ { 2 } } { 2 \mathrm {~m} }$
• B. $\frac { \mathrm { P } ^ { 2 } } { \mathrm {~m} }$
• C.
• D. $\frac { 1 } { 2 }$ mP²

Answer 1

Answer: (C)

Answer 2

KE = $\frac { 1 } { 2 }$Iw² = $\frac { 1 } { 2 }$ =