Work, Energy and Power: JEE Main 2018 Physics question

JEE Main 2018 · 16 Apr, Morning shift · Q8580

JEE Main 201816 Apr, Morning shiftPhysicsMediumWork, Energy and Power70× since 2002

Two particles of the same mass m are moving in circular orbits because of force, given by

F\left( r \right) = {{ - 16} \over r} - {r^3}

The first particle is at a distance r = 1, and the second, at r = 4. The best estimate for the ratio of kinetic energies of the first and the second particle is closest to :

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JEE Main 2018 Work, Energy and Power Question with Solution (16 Apr Morning shift, Q8580) | JEE Arc