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NEET 1991 (AIPMT) · Rolling Motion

Rolling Motion question from NEET 1991 (AIPMT)

Q94NEET 1991 · AIPMTEasy

Rolling Motion

If a sphere is rolling, the ratio of the translational energy to total kinetic energy is given by

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Answer: (d)

  1. Sphere: Kt=12mv2K_t = \frac{1}{2}mv^2, Ktotal=710mv2K_{total} = \frac{7}{10}mv^2.
  2. KtKtotal=1/27/10=57\frac{K_t}{K_{total}} = \frac{1/2}{7/10} = \frac{5}{7}
  3. So the answer is (d) 5 : 7.
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