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Olympiad workbookNSEPMotion in Two Dimensions

A particle starting from rest at the highest point slides down the outside of a smooth vertical circular track of radius 0.3 m . When it leaves the track its vertical fall is h and the linear velocity is v . The angle made by the radius at that position of the particle with the vertical is . Now consider the following observations: (g=10 ~m / s ^2 ) (I) h=0.1 ~m and = 2 3 . (II) h=0.2 ~m and =1 / 3 . (III) v= 2 ~ms ⁻

Options

  1. A(I) and (III) both are correct.
  2. Bonly (II) is incorrect.
  3. Conly (III) is correct.
  4. D(IV) is correct.

Correct answer

D. (IV) is correct.

Step-by-step solution

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