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## Homework Statement

Small block of mass "m" rests on sloping side of triangular block of mass "M" which itself rests on table. Assuming all surfaces are

**frictionless**, determine force "F" that must be applied to "M" so that "m" remains fixed. Wedge incline is "THETA"

## Homework Equations

## The Attempt at a Solution

attached is picture. I don't know where to start, so no attempted solution. The answer is:

F = (m+M)g*tan(THETA). i don't see why the mass on the wedge would move up the ramp if a force is applied to the left of the wedge.

where g is acceleration due to gravity