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A 200-lb man walks up an inclined plank of negligible weight which makes an angle of...

A 200-lb man walks up an inclined plank of negligible weight which makes an angle of 70o with the wall. The coefficient of static friction between the floor and the ladder is 0.3 and that between the ladder and the wall is 0.2. When the man is at a horizontal distance X from the foot of the plank, the plank would begin to slide. (a) Draw a complete FBD of the system. Find (b) the frictional force on the floor, (b) the frictional force on the wall and (c) the horizontal distance X

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genius_generous answered 2 years ago
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