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Question:

If a wedge is made longer relative to its height, how does the force increase?

A The amount of lift is decreased as the wedge is moved horizontally.
explanation

When the distance of a lift is the same as the distance the initial force travels, the force in will equal the force out. Making the wedge longer relative to its height (less slope) will change this by decreasing the amount of lift that takes place as the wedge is moved horizontally.