Question
In: Physics
a.)A 9 m ladder whose weight is 417 N is placed against a smooth vertical wall....
a.)A 9 m ladder whose weight is 417 N is placed against a smooth vertical wall. A person whose weight is 846 N stands on the ladder a distance 3.4 m up the ladder. The foot of the ladder rests on the floor 1.98 m from the wall. Calculate the force exerted by the wall. Answer in units of N.
b.)Calculate the notmal force exerted by the wall. Answer in units of N.
Solutions
genius_generous answered 10 months agoRelated Solutions
A 10.0kg uniform ladder that is 2.50m long is placed against a smooth (frictionless) vertical wall...
A 10.0kg uniform ladder that is 2.50m long is placed
against a smooth (frictionless) vertical wall and reaches to a
height of 2.10m. The angle between the floor and the ladder is 60°.
An 80.0kg bucket of concrete is suspended from the top rung of the
ladder, right next to the wall.
a) Draw a free-body diagram of the ladder.
b) What is the magnitude of the friction force, that
the floor exerts on the ladder?
c) What is the...
An 8.0 m, 280 N uniform ladder rests against a smooth wall. The coefficient of static...
An 8.0 m, 280 N uniform ladder rests against a smooth wall. The
coefficient of static friction between the ladder and the ground is
0.65, and the ladder makes a 50.0° angle with the ground. How far
up the ladder can an 870 N person climb before the ladder begins to
slip?
An 8.0 m, 240 N uniform ladder rests against a smooth wall. The coefficient of static...
An 8.0 m, 240 N uniform ladder rests against a smooth wall. The
coefficient of static friction between the ladder and the ground is
0.55, and the ladder makes a 50.0° angle with the ground. How far
up the ladder can an 700 N person climb before the ladder begins to
slip?
______ m
A ladder is leaning against a vertical wall, and both ends of the ladder are at...
A ladder is leaning against a vertical wall, and both ends of
the ladder are at the point of slipping. The coefficient of
friction between the ladder and the horizontal surface is μ1 =
0.205 and the coefficient of friction between the ladder and the
wall is μ2 = 0.153. Determine the maximum angle with the vertical
the ladder can make without falling on the ground.
A ladder is leaning against a vertical wall, and both ends of the ladder are at...
A ladder is leaning against a vertical wall, and both ends of
the ladder are at the point of slipping. The coefficient of
friction between the ladder and the horizontal surface is ?1 =
0.215 and the coefficient of friction between the ladder and the
wall is ?2 = 0.203. Determine the maximum angle with the vertical
the ladder can make without falling on the ground.
A uniform 5-m long ladder weighing 80 N leans against a frictionless vertical wall. The...
A uniform 5-m long ladder weighing 80 N leans against a
frictionless vertical wall. The foot of the ladder is 1 m from
the wall. What is the minimum coefficient of static friction
between the ladder and the floor necessary for the ladder not to
slip?
A ladder 10 ft long rests against a vertical wall. If the bottom of the ladder...
A ladder 10 ft long rests against a vertical wall. If the bottom
of the ladder slides away from the wall at a rate of 1.4 ft/s, how
fast is the angle between the ladder and the ground changing when
the bottom of the ladder is 8 ft from the wall? (That is, find the
angle's rate of change when the bottom of the ladder is 8 ft from
the wall.)
A ladder having a uniform density and a mass m rests against a frictionless vertical wall,...
A ladder having a uniform density and a mass m rests
against a frictionless vertical wall, making angle 48.0° with the
horizontal. The lower end rests on a flat surface where the
coefficient of static friction is µs = 0.370. A window
cleaner with mass M = 2m attempts to climb the
ladder. Given a ladder length of L, what fraction of the
length of the ladder (x / L) will the worker have reached
when the ladder begins to...
A uniform 210 N ladder rests against a perfectly smooth wall, making a 30.0 degree angle...
A uniform 210 N ladder rests against a perfectly smooth wall,
making a 30.0 degree angle with the wall.
Find the normal forces that the wall on the ladder. Express in
N
Find the normal force that the floor exert on the ladder.
Express in N
What is the friction force on the ladder at the floor? Express
in N
A 14.0 m uniform ladder weighing 480 N rests against a frictionless wall. The ladder makes...
A 14.0 m uniform ladder weighing 480 N rests against a
frictionless wall. The ladder makes a 63.0°-angle with the
horizontal.
(a)
Find the horizontal and vertical forces (in N) the ground exerts
on the base of the ladder when an 850-N firefighter has climbed
4.10 m along the ladder from the bottom.
horizontal force
magnitude Ndirection ---Select--- towards the wall away from the
wall
vertical force
magnitude Ndirection ---Select--- up down
(b)
If the ladder is just on the...
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