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A ladder of mass m = 37.1 kg and length l = 2.91 m is leaning against a wall, at an angle θ. The coefficient of friction between ladder and floor is 0.301, and you can assume that the friction between ladder and wall is 0.

What is the maximum value that θ can have before the ladder starts slipping? Please specify your answer in radians!

2007-02-07 10:13:57 · 1 answers · asked by aks s 1 in Science & Mathematics Physics

1 answers

Draw two diagrams: the space diagram and the force diagram.

Draw the forces on the space diagram.
Use the space diagram to draw the force diagram using the coefficient of friction given.
This triangle will be the extreme triangle giving you the maximum angle θ. Measure it and then repeat the work using equations derived from resolving the forces in two orthogonal directions: usually vertically and horizontally.

2007-02-11 04:51:35 · answer #1 · answered by Rufus Cat 4 · 0 0

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