# Mechanics + Magnetism = Mechatism 2

Let an conducting Thin Rigid Rod of Length 'L' and mass 'm' is released under gravity from rest at time t=0 at an angular position $${ \theta }_{ 0 }\quad =\quad { 60 }^{ 0 }$$ from horizontal.

There is gravity in -Y direction and uniform Magnetic Field of strength $${ B }_{ 0 }\quad$$

The Rod is sliding on the perfectly smooth Surface.

So Find the Magnitude of Motional EMF produced in Rod between The End Point A and Point P at the instant when Rod is making an angle $$\theta \quad =\quad { 30 }^{ 0 }$$ from Horizontal.

Let your answer is $$\alpha$$ Then Evaluate $$\left\lfloor 100\alpha \right\rfloor$$.

Details

$$\bullet \quad AP\quad =\quad \frac { 1 }{ 4 } \quad m\\ \bullet \quad L\quad \quad =\quad \quad 1\quad m\\ \\ \bullet \quad B\quad \quad =\quad \quad 1\quad T\\ \\ \bullet \quad g\quad \quad =\quad \quad 10\quad m/{ s }^{ 2 }$$.