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What is the minimum angle so that the person can reach a distance of 1.8m without having the ladder slip?

What is the minimum angle so that the person can reach a distance of 1.8m without-example-1
User Amer Al Zibak
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2.8k points

1 Answer

14 votes
14 votes

m= mass = 24.8 kg

g= 9.8 m/s^2

u= coefficient of friction = 0.51

N1 = normal force on wall

N2= normal force due to horizontal floor

N2= mg = 24.8 * 9.8 = 243.04 N

Friction force: (FR)

Fr = u N = 0.51 * 243.04= 123.9504 N

Fr * tan Ф = mg

123.9504 * tan Ф = 24.8 * 9.8

Ф = 62.98°

User Feloneous Cat
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3.0k points