still don't understand; please help

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Questions

The following questions were asked by visitors named still don't understand; please help.

A uniform ladder of length 20.0m and weight 750 N is propped up against a smooth vertical wall with its lower end on a rough horizontal surface. The coefficient of friction between the ladder and this horizontal surface is 0.40. (a) Draw a diagram for the...

Answers

The following answers were posted by visitors named still don't understand; please help.