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Question: Answered & Verified by Expert
A rocket is fired vertically from the earth with an acceleration of 2g, where g is the gravitational acceleration. On an inclined plane inside the rocket, making an angle θ with the horizontal, a point object of mass m is kept. The minimum coefficient of friction μmin between the mass and the inclined surface such that the mass does not move is:
PhysicsLaws of MotionJEE MainJEE Main 2016 (09 Apr Online)
Options:
  • A tan2θ
  • B tanθ
  • C 3tanθ
  • D 2tanθ
Solution:
1113 Upvotes Verified Answer
The correct answer is: tanθ


3mgsinθ=μ3mgcosθ

μ=tanθ

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