Question

A 80 kg window cleaner uses a 18 kg ladder that is 5.9 m long. He...

A 80 kg window cleaner uses a 18 kg ladder that is 5.9 m long. He places one end on the ground 2.9 m from a wall, rests the upper end against a cracked window, and climbs the ladder. He is 2.7 m up along the ladder when the window breaks. Neglect friction between the ladder and window and assume that the base of the ladder did not slip. (a) Find the force exerted on the window by the ladder just before the window breaks. Incorrect: Your answer is incorrect. N (b) Find the magnitude and direction of the force exerted on the ladder by the ground just before the window breaks. N ° (above the horizontal)

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A 79 kg window cleaner uses a 13 kg ladder that is 4.0 m long. He...
A 79 kg window cleaner uses a 13 kg ladder that is 4.0 m long. He places one end on the ground 2.5 m from a wall, rests the upper end against a cracked window, and climbs the ladder. He is 1.2 m up along the ladder when the window breaks. Neglect friction between the ladder and window and assume that the base of the ladder does not slip. When the window is on the verge of breaking, what are...
A ladder whose length L is 12 m and mass m are 45 kg rests against...
A ladder whose length L is 12 m and mass m are 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...
A 2.0 m long, 200 N uniform ladder, rests with one end against a smooth wall...
A 2.0 m long, 200 N uniform ladder, rests with one end against a smooth wall making an angle of 30 degrees with the wall. The coefficient of friction between the ground and the lower end of the ladder is .5. With how large a force can you push the upper end of the ladder parallel to the wall before it starts to slip down?
A ladder of length L = 2.7 m and mass m = 21 kg rests on...
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...
An 80 kg person climbs a 5 m long ladder that leans against a smooth wall...
An 80 kg person climbs a 5 m long ladder that leans against a smooth wall and makes an angle of 30 degrees with the wall. the mass of the ladder is 20 kg. what is the magnitude of the minimum friction force required between the floor and the ladder so the person can reach the top of the ladder? a)113 N b) 56.6 N c)566N d)509 N e)453 N
A 10.0 -kg monkey climbs a uniform ladder with weight w = 1.20x10^2 N and length...
A 10.0 -kg monkey climbs a uniform ladder with weight w = 1.20x10^2 N and length L=3.00m (hypotenuse) as shown in the figure. The ladder rests against the wall at an angle of theta = 60.0°. The upper and lower ends of the ladder rest on frictionless surfaces, with the lower end fastened to the wall by a horizontal rope that is frayed and that can support a maximum tension of only 80.0 N. (a) Draw a force diagram for...
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 49.0° with the horizontal. The lower end rests on a flat surface where the coefficient of static friction is µs = 0.410. 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 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 50.0° with the horizontal. The lower end rests on a flat surface where the coefficient of static friction is µs = 0.420. 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 ladder of length L = 2.4 m and mass m = 15 kg rests on...
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...
A 16.0-m uniform ladder weighing 490 N rests against a frictionless wall. The ladder makes a...
A 16.0-m uniform ladder weighing 490 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 820-N firefighter has climbed 4.30 m along the ladder from the bottom. Horizontal Force magnitude __N direction - towards the wall or away from the wall? Vertical Force magnitude N direction up or down? (b) If the ladder is just on...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT