The surfaces between a 6 kg block, the 24 kg wedge and between the 24 kg wedge and the horizontal plane are smooth (without fric-tion).
The acceleration of gravity is 9.8 m/s2 .
A block is released on the inclined plane (top side of the wedge).
Since the small block is not sliding up or down the wedge, we know that the z-component of the total force acting on it is zero, i.e.
N_b cos theta - m_b g = 0,
where N_b is the normal force acting on the block, theta = 34 deg is the incline ...
We solve a problem in Newtonian mechanics involving a block and a wedge.