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If a heavy barrel is rolled up a plane inclined at 30° to the horizontal….

If a heavy barrel is rolled up a plane inclined at 30° to the horizontal. its velocity ratio will be
  • A.
    3.0
  • B.
    3.1
  • C.
    3.2
  • D.
    2.0
Correct Answer: Option D
Explanation

V.R = (1)/sinθ = (1)/sin 30 = (1)/(1)/2 = 2

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