Inclined Plane

Classical Mechanics Level 5

A cubical block of mass \( m \) is released from rest at a height \( h \) on a frictionless surface of a movable wedge of mass \( M \), which in turn is placed on a horizontal frictionless surface as shown in the figure.

The magnitude of velocity of the triangular block when the smaller block reaches the bottom is

\[\large v = { \left [ \dfrac{a m^b g h \cos ^{ c }{ \theta } }{( m + M)( M + m\sin ^{ d }{ \theta } )} \right]}^{ e } \]

Enter your answer as \( a + b + c + d + e\).

\(Details\) \(and\) \(Assumptions\):

  • \(a\),\(b\),\(c\),\(d\) are positive integers and \(e\) is a positive rational number

  • Velocity is asked when the block reaches the bottom of the incline ( not the horizontal surface).

  • All surfaces of contacts are frictionless.

  • Size of block is negligible compared to size of the incline.

This is a part of my set Aniket's Mechanics Challenges.

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