10.)A ladder, whose length is 10 m and whose mass is 40 kg rests against a frictionless vertical wall. Its upper end is a distance of 7.7 m above the ground. The center of mass of the ladder is 3 1 of the way up the ladder. The coefficient of static friction between the ladder and the ground is 0.53. If a carpenter climbs 85% of the way up the ladder before it starts to slip, find the mass of the carpenter. Show the Free body diagram of your work. Write it on the paper and do not type it

10.)A ladder, whose length is 10 m and whose mass is 40 kg rests against a frictionless vertical wall. Its upper end is a distance of 7.7 m above the ground. The center of mass of the ladder is 3 1 of the way up the ladder. The coefficient of static friction between the ladder and the ground is 0.53. If a carpenter climbs 85% of the way up the ladder before it starts to slip, find the mass of the carpenter. Show the Free body diagram of your work. Write it on the paper and do not type it

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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solve the following problems and illustrate the free body diagram. write it on paper and do not type it.

10.) A ladder, whose length is 10 m and whose mass is 40 kg rests against a frictionless vertical wall. Its
upper end is a distance of 7.7 m above the ground. The center of mass of the ladder is 3 1 of the
way up the ladder. The coefficient of static friction between the ladder and the ground is 0.53. If
a carpenter climbs 85% of the way up the ladder before it starts to slip, find the mass of the
carpenter. Show the Free body diagram of your work. Write it on the paper and do not type it

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The ladder and the person weigh 30 lb and 180 lb, respectively. The center of mass of the 1-2ft ladder is at its midpoint.The coefficient of static friction between the ladder and the floor is 0.5 and the coefficient of friction between the ladder and the wall is 0.3. What is the largest value of angle ALPHA for which the person could climb to the top of the ladder without it slipping?
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