JEE Main2016PhysicsLaws of MotionActual
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 μ m i n between the mass and the inclined surface such that the mass does not move is:
Options
- Atan 2 θ
- Btan θ
- C3 tan θ
- D2 tan θ
Correct answer
B. tan θ
Step-by-step solution
3 m g sin ⁡ θ = μ 3 m g cos ⁡ θ μ = tan ⁡ θ