Question

A ladder of length L = 2.7 m and mass m = 21 kg rests on a floor with coefficient of static friction μs = 0.55. Assume the wall is frictionless.

1)What is the normal force the floor exerts on the ladder? 205.8 N

2)What is the minimum angle the ladder must make with the floor to not slip?

3)A person with mass M = 68 kg now stands at the very top of the ladder. What is the normal force the floor exerts on the ladder?

4)What is the minimum angle to keep the ladder from sliding?

Answer #1

A ladder of length L = 2.4 m and mass m = 15 kg rests on a floor
with coefficient of static friction μs = 0.56. Assume
the wall is frictionless.
1)
What is the normal force the floor exerts on the ladder? N
2)
What is the minimum angle the ladder must make with the floor to
not slip?
3)
A person with mass M = 62 kg now stands at the very top of the
ladder.
What is...

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A uniform ladder of length l and mass m rests against a smooth,
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A uniform ladder rests against a frictionless wall at an angle
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. ______m

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A uniform ladder rests against a frictionless wall at an angle
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θ = 50.0°
with respect to the ground. If the weight of the ladder is
WL = 250 N,
the length is
L = 9.0 m,
and the coefficient of static friction between the ladder and
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μs = 0.65,
determine the distance a man with a weight of
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A 16.0-m uniform ladder weighing 490 N rests against a
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Horizontal Force
magnitude
__N
direction
- towards the wall or away from the wall?
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A 2.0-m-long, 11-kg ladder is resting against a house wall,
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A. Determine the minimum coefficient of static friction between
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