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Work Power and Energy question

2018 · 16 Apr · Shift 1 · Q66
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Work Power and Energy question

2018 · 16 Apr · Shift 1 · Q66

JEE MainPhysicsWork Power and EnergyMCQ+4 / −1
Two particles of the same mass m are moving in circular orbits because of force, given by F(r)=−16r−r3F\left( r \right) = {{ - 16} \over r} - {r^3}F(r)=r−16​−r3 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 :
  1. A
    6×10−26 \times {10^{ - 2}}6×10−2
  2. B
    3×10−33 \times {10^{ - 3}}3×10−3
  3. C
    10−1{10^{ - 1}}10−1
  4. D
    6×1026 \times {10^{ 2}}6×102
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