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  1. Tardigrade
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  4. Let r be the distance of a particle from a fixed point to which it is attracted by an inverse square law force given by F=k / r2 (k= constant). Let m be the mass of the particle and L be its angular momentum with respect to the fixed point. Which of the following formulae is correct about the total energy of the system?

Q. Let be the distance of a particle from a fixed point to which it is attracted by an inverse square law force given by constant). Let be the mass of the particle and be its angular momentum with respect to the fixed point. Which of the following formulae is correct about the total energy of the system?

Work, Energy and Power Report Error

Solution:




radial velocity
Hence, KE due to this velocity
tangential velocity and

due to tangential velocity


Total energy

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