NEET2022PhysicsLaws of MotionActual
In the diagram shown, the normal reaction force between 2 ~kg and 1 ~kg is (Given g=10 ~ms ⁻² ) (Consider the surface, to be smooth):
Options
- A25 ~N
- B39 ~N
- C6 ~N
- D10 ~N
Correct answer
A. 25 ~N
Step-by-step solution
Total force along inclined plane, aligned f & =- F ₁+6 g 30^ + F ₂ f & =-60+6 g 30^ +18 f & =-60+6 10 1 2 +18 f & =12 ~N (downwards) acceleration, a & = f m = 12 6 =2 ~m / s ^2 aligned As per question, the normal force between 2 ~kg and 1 ~kg is, aligned N -18-10 30^ & =m a ~N -18-10 1 2 & =1 2 ~N & =2+23 ~N & =25 ~N aligned