Physics
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Question

The minimum force required to start pushing a body up a rough (coefficient of ) inclined plane is F1. While the minimum force needed to prevent it from sliding down is F2. If the inclined plane makes an angle theta from the horizontal. such that  than theta equals 2 mu the ratio  F subscript 1 over F subscript 2 is

  1. 4
  2. 1
  3. 2
  4. 3

The correct answer is: 3

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