A wedge of mass \( M \) rests on an absolutely smooth, horizontal s...

A wedge of mass \( M \) rests on an absolutely smooth, horizontal surface. A block of mass \( m \) is placed on the wedge,
\( \mathrm{P} \) inclined at an angle \( \alpha \) to the horizontal. All the surfaces are

W frictionless. Assuming that the system was at rest at the initial moment, find the velocity of the wedge when the block slides down the plane through a vertical height \( h \).