A ladder with a length L = 12 m and a mass m = 50 kg...
A ladder with a length L = 12 m and a mass m = 50 kg is leaning against a frictionless wall.
Below the ladder is a floor with a coefficient of static friction of 0.5, and the vertical of the ladder is h = 9 m.
The center of mass of the ladder is located at the lower side of L/3. A firefighter with a mass M = 100 kg climbed so that its center of mass was in the middle of the ladder.
(a) Find the x-direction force acting on the ladder wall.
(b) Find the x and y direction forces acting on the bottom ladder.
(c) When varying the vertical height h of the ladder, determine the range of h values at which the ladder does not slip on the floor.
Thanks
Homework Answers
A uniform ladder of length L and mass 5 kg rests against a smooth, frictionless, vertical...
A uniform ladder of length L and mass 5 kg rests against a smooth, frictionless, vertical wall. The coefficient of static friction between the ladder and ground is 0.4. a.) Draw a force diagram indicating all the forces acting on the ladder and where they are applied. b.) Find the minimum angle,between the ladder and the ground at which the ladder will not slip.
A ladder of length L = 2.8 m and mass m = 22 kg rests on...
A ladder of length L = 2.8 m and mass m = 22 kg rests on a floor with coefficient of static friction μs = 0.57. Assume the wall is frictionless. *What is the minimum angle the ladder must make with the floor to not slip? A person with mass M = 60 kg now stands at the very top of the ladder. *What is the normal force the floor exerts on the ladder? *What is the minimum angle to...
A 14.0 m uniform ladder weighing 490 N rests against a frictionless wall. The ladder makes...
A 14.0 m uniform ladder weighing 490 N rests against a frictionless wall. The ladder makes a 63.00-angle with the horizontal. (a) Find the horizontal and vertical forces (in N) the ground exerts on the base of the ladder when an 830-N firefighter has climbed 3.80 m along the ladder from the bottom. horizontal force magnitude direction ---Select--- vertical force magnitude direction ---Select--- V (b) If the ladder is just on the verge of slipping when the firefighter is 9.20...
(1) A 4m ladder has mass m= 10 kg. We assume that its centre of mass...
(1) A 4m ladder has mass m= 10 kg. We assume that its centre of mass is half-way along its length. The ladder is leaning against a wall at an angle of 30° from the vertical, as shown in the figure. Suppose that the wall is frictionless smooth and slippery), and that the coefficient of static friction between the feet of the ladder and the floor is H. =0.6. Take the acceleration due to gravity to be g=10m/s" directed vertically...
A ladder of length L = 2.5 m and mass m = 20 kg rests on...
A ladder of length L = 2.5 m and mass m = 20 kg rests on a floor
with coefficient of static friction μs = 0.52. Assume
the wall is frictionless.
1)What is the normal force the
floor exerts on the ladder? 196.2N
2) What is the minimum angle the ladder must make with the floor
to not slip?
3)
A person with mass M = 63 kg now
stands at the very top of the ladder.
What is the...
A ladder of mass m = 15 kg and length L = 2.0 m leans at...
A ladder of mass m = 15 kg and length L = 2.0 m leans at an angle theta = 30 degree against frictionless wall. Coefficient of friction between ladder and grand is mu = 0.40. draw diagram of all forces acting on ladder calculate magnitude of each force max angle such that ladder will not slip?
A 14.0-m uniform ladder weighing 520 N rests against a frictionless wall. The ladder makes a...
A 14.0-m uniform ladder weighing 520 N rests against a frictionless wall. The ladder makes a 55.0degree angle with the horizontal. Find the horizontal and vertical forces the ground exerts on the base of the ladder when an 830-N firefighter has climbed 4.10 m along the ladder from the bottom. Horizontal Force If the ladder is just on the verge of slipping when the firefighter is 9.40 m from the bottom, what is the coefficient of static friction between ladder...
please please i need help with a,b,,c A 14.0 m uniform ladder weighing 490 N rests...
please please i need help with a,b,,c
A 14.0 m uniform ladder weighing 490 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 830-N firefighter has climbed 3.80 m along the ladder from the botto horizontal force magnitude direction 239.62 towards the wall vertical force magnitude 239.62 What forces act in the vertical direction? N...
A ladder whose length L is 12 m and mass m is 45 kg rests against...
A ladder whose length L is 12 m and mass m is 45 kg rests against a wall. Its upper end is a distance h of 9.3 m above the ground. The center of mass of the ladder is one-third of the way up the ladder. A fire fighter whose mass M is 72 kg climbs the ladder until his center of mass is halfway up. Assume the wall but not the ground is frictionless. What forces are exerted on...
s. -15 points SerPSE9 12.P.013.MI.FB. My Notes Ask Your Teacher A 16.0-m uniform ladder weighing 480...
s. -15 points SerPSE9 12.P.013.MI.FB. My Notes Ask Your Teacher A 16.0-m uniform ladder weighing 480 N rests against a frictionless wall. The ladder makes a 61.0° angle with the horizontal (a) Find the horizontal and vertical forces 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 direction Select Vertical Force magnitude direction Select. (b) If the ladder is just on the verge...
A 14.0 m uniform ladder weighing 490 N rests against a frictionless wall. The ladder makes a 63.00-angle with the horizontal. (a) Find the horizontal and vertical forces (in N) the ground exerts on the base of the ladder when an 830-N firefighter has climbed 3.80 m along the ladder from the bottom. horizontal force magnitude direction ---Select--- vertical force magnitude direction ---Select--- V (b) If the ladder is just on the verge of slipping when the firefighter is 9.20...
(1) A 4m ladder has mass m= 10 kg. We assume that its centre of mass is half-way along its length. The ladder is leaning against a wall at an angle of 30° from the vertical, as shown in the figure. Suppose that the wall is frictionless smooth and slippery), and that the coefficient of static friction between the feet of the ladder and the floor is H. =0.6. Take the acceleration due to gravity to be g=10m/s" directed vertically...
A ladder of length L = 2.5 m and mass m = 20 kg rests on a floor
with coefficient of static friction μs = 0.52. Assume
the wall is frictionless.
1)What is the normal force the
floor exerts on the ladder? 196.2N
2) What is the minimum angle the ladder must make with the floor
to not slip?
3)
A person with mass M = 63 kg now
stands at the very top of the ladder.
What is the...
A ladder of mass m = 15 kg and length L = 2.0 m leans at an angle theta = 30 degree against frictionless wall. Coefficient of friction between ladder and grand is mu = 0.40. draw diagram of all forces acting on ladder calculate magnitude of each force max angle such that ladder will not slip?
A 14.0-m uniform ladder weighing 520 N rests against a frictionless wall. The ladder makes a 55.0degree angle with the horizontal. Find the horizontal and vertical forces the ground exerts on the base of the ladder when an 830-N firefighter has climbed 4.10 m along the ladder from the bottom. Horizontal Force If the ladder is just on the verge of slipping when the firefighter is 9.40 m from the bottom, what is the coefficient of static friction between ladder...
please please i need help with a,b,,c
A 14.0 m uniform ladder weighing 490 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 830-N firefighter has climbed 3.80 m along the ladder from the botto horizontal force magnitude direction 239.62 towards the wall vertical force magnitude 239.62 What forces act in the vertical direction? N...
s. -15 points SerPSE9 12.P.013.MI.FB. My Notes Ask Your Teacher A 16.0-m uniform ladder weighing 480 N rests against a frictionless wall. The ladder makes a 61.0° angle with the horizontal (a) Find the horizontal and vertical forces 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 direction Select Vertical Force magnitude direction Select. (b) If the ladder is just on the verge...
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