A small spherical ball of mass \( m \) is rolling without slipping down the loop track as shown ...

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A small spherical ball of mass \( m \) is rolling without slipping down the loop track as shown in the figure. The ball is released from rest on the linear portion at a vertical height \( \mathrm{h} \) from the lowest point. The circular part as shown in figure has a radius \( \mathrm{r} .\left[\mathrm{g}=10 \mathrm{~ms}^{2}\right] \)

Find the normal force and the frictional force acting on the ball if \( \mathrm{h}=50 \mathrm{~cm} \), \( r=10 \mathrm{~cm}, \theta=0 \) and \( m=70 \mathrm{~g} \).
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