Push it away

A solid cylinder of mass $m=5\text{ kg}$ rests on two supports of the same height, as shown. One support is rough and stationary while other is a smooth plank of the same mass placed on a smooth, horizontal surface. Initially, $\theta =37^\circ$ and there is no slipping between the cylinder and stationary support. Now, the system is released from rest.

What is the normal force $($in $\text{N})$ acting between the cylinder and the plank just after the release?

Take $g=9.8\text{ m/s}^2.$

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