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JEE Main 09 April 2016 Paper

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Question : 3

Total: 90

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 :

tanθ
2 tanθ
3 tanθ
tan2θ

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